CN101772198A - Method for realizing clustered group calling service and system therefor - Google Patents
Method for realizing clustered group calling service and system therefor Download PDFInfo
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- CN101772198A CN101772198A CN200810190800A CN200810190800A CN101772198A CN 101772198 A CN101772198 A CN 101772198A CN 200810190800 A CN200810190800 A CN 200810190800A CN 200810190800 A CN200810190800 A CN 200810190800A CN 101772198 A CN101772198 A CN 101772198A
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Abstract
The invention relates to a method for realizing a clustered group calling service and a system therefor. The method comprises: initiating a self-established group request carrying the information of a group member for a BTS when a terminal needs to establish a clustered group and learns that a base station BTS is in the single-station running mode; distributing a group identification for a self-established group after the BTS receives the self-established group request; and informing the terminal of the group member to join in the self-established group according to the information of request. The scheme of the invention provides the management capability of the clustered group under the single-station running mode and improves the stability, reliability and applicability of the base station in case of emergency.
Description
Technical field
The present invention relates to the wireless cluster communication technology, relate in particular to and realize that cluster group sets up and the method and system of group service.
Background technology
Wireless cluster communication system, be the command dispatching and communication system that is widely used in industry such as government bodies, public security fire-fighting, airport harbour, industrial and mining enterprises, hydraulic engineering, (physical culture or exhibition etc.) big assembly, military commanding and occasion in recent years, and have regional strong feature.
The main distinction that cluster multi call and traditional voice are called out is that the former is the half-duplex call of one-to-many, be at first to obtain right of speech before the group member speech, right of speech can only be distributed to a group member in the group at most at synchronization, have only the group member that obtains right of speech just can talk, other member can only answer the speech that this possesses the group member of right of speech in the group during this period, so be half-duplex mode.Group service is the communication service between group user, this just need manage group: call out when initiating and must set up and select a group that is made up of one or more group members in advance, then could (PTT Push-to-Talk) initiates the group calling of this group by the group calling key on the terminal.
The current cluster communication system is created the method for cluster group, as shown in Figure 1, comprises step:
A. set group information by cluster management system, comprise one or more group members of designated group, the associated rights of distributing each member and role or the like, and group information is stored in the database of network side;
B. network side stores group information in the terminal into by modes such as wave points.
Terminal selects to store in advance terminal when calling out group initiates group calling by PTT group calling key.
This method needs cluster management system, mobile switch (MSC, Mobile Switcher Center) core-network side equipment, base station system (BSS such as, Base Station System) and the participation of terminal, finish work such as the establishment of cluster group and maintenance jointly.
According to the application of wireless cluster communication system as can be seen, the stability of wireless cluster communication system is very important.Even in emergency circumstances at some, when for example the reason of artificial destructions such as natural calamity, war and the attack of terrorism such as earthquake causes network line to interrupt, also should be able to provide certain group communication service, guarantee that user's managing can be proceeded.
At present, base station system (BSS, Base Station System) is made of base station controller (BSC, Base Station Controller) and base station transceiver (abbreviation base station) (BTS, Base TransceiverStation) usually.Wherein, BSC is deployed in the machine room of telecom operators usually, and BTS then is deployed in apart under the BSC base station tower far away, and the link between BSC and the BTS is called the Abis link, connects with transmission equipments such as optical fiber usually.Under the situation of above-mentioned natural calamity or artificial destruction, be easy to cause the transmission link between BTS and the BSC to interrupt, this moment, BTS was under the operational mode of single station, lost the cooperating of cluster management system, core network device and BSC, the base station can't provide the function and the cluster multi call business of group creating for the user in its overlay area, like this, also just be difficult at the user flexibility in single base station range, promptly provide cluster communication service.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method and system of realizing the cluster multi call business, can be under the operational mode of single station in the base station provides the group creating function, thereby for the user flexibility in single base station range, promptly provide cluster communication service.
In order to solve the problems of the technologies described above, the invention provides a kind of method that realizes cluster multi call, comprising: when terminal need be set up cluster group and learn that base station BTS is in single station operational mode, initiate to carry the self-built group request of group member information to BTS; BTS is group identification of this self-built group allocation after receiving the request of self-built group, and according to the group member information in this request, the terminal of notice group member adds self-built group.
Further, described terminal learns that described BTS is in single station operational mode, being to detect the state of the link between itself and the base station controller BSC when undesired at BTS, is single station operational mode with the self-operating status modifier, and by the described terminal of Radio Link particular forward channel notification.
Further, group member information is at described terminal editor or the canned data that accesses, and described editor is input and/or select the mobile terminal number MDN of group member to realize in the associated person information of terminal storage one by one one by one on the man-machine interface that provides by terminal.
Further, described terminal also provides the man-machine interface of setting cohort attribute information, and cohort attribute information comprises at least: group name, group's valid expiration date and the identification information of initiating the terminal of self-built group request; Described cohort attribute information is also carried in the request of described self-built group.
Further, the terminal of the BTS notice group member mode that adds self-built group may further comprise the steps at least:
BTS resolves the group member information build in group's request message, and structure carries the group member invitation message of group identification information, and the group member invitation message is sent to the terminal of being invited in the described group member information;
After being invited terminal to receive this group member invitation message, the group identification information stores is arrived local.
Further, the BTS method that sends described group member invitation message comprise at least following mode it
BTS periodically sends broadcast on common broadcast channel, wherein carry described group identification information, group member information and described cohort attribute information;
BTS periodically sends broadcast at the paging channel time slot, wherein carries described group identification information, described group member information and described cohort attribute information;
Described BTS sends to each group member one by one on Forward Paging Channel and carries the MDN of described group identification information, group member and the beep-page message of cohort attribute information by parsing the mobile terminal number MDN of the group member in the described group member information.
Further, the described terminal of being invited receives the group member invitation message that has group identification information and group member information from paging channel time slot and/or broadcast channel, if the MDN of contrast self is present in the described group member information, then store described group identification information, otherwise abandon described group member invitation message.
Further, invited terminal after receiving the group member invitation message, return group member by Reverse Access Channel to described BTS and invite response message, comprised the mobile terminal number MDN information of being invited terminal in this response message at least.
Further, BTS also initiates described group identification notice the terminal of self-built group request.
Further, BTS initiates the group identification notice on one of following specific opportunity the terminal of self-built group request:
Receive the self-built group request message of described terminal transmission at BTS after;
At BTS after sending the group member invitation message to the terminal of described group member;
Send described group member invitation message at BTS in terminal to described group member, and after receiving that group member that one of them described group member or all group members return is invited response message;
Send the group member invitation message at BTS to the terminal of group member, and after waiting for certain moment;
The described group identification information of self-built group request-reply message informing that BTS returns to the terminal of initiating the request of self-built group by Forward Paging Channel at least; Also carry the number and/or the MDN information of the terminal that successfully adds self-built group in the self-built group request-reply message.
Further, described method also comprises: the terminal of being invited terminal or initiating the request of self-built group is selected self-built group, initiates cluster multi call by the cluster multi call function key.
In order to solve the problems of the technologies described above, the invention provides the system that realizes cluster multi call under the operational mode of a kind of single station, comprise a plurality of terminals and base station BTS, wherein:
A terminal in a plurality of terminals is used for when needs are set up cluster group and learnt that BTS is in single station operational mode the self-built group request message of initiating to carry group member information to BTS;
BTS is used for after receiving self-built group request message, is group identification of self-built group allocation, and according to group member information, and the group member invitation message of carrying group identification information is sent to the terminal of being invited in the described group member information;
Invited terminal, be used for after receiving the group member invitation message of BTS, arrived the group identification information stores of wherein carrying local.
Further, described terminal learns that BTS is in single station operational mode, being to detect the state of the link between itself and the base station controller BSC when undesired at BTS, is single station operational mode with the self-operating status modifier, and by Radio Link particular forward channel notification terminal.
Further,
Invited terminal, also be used for after receiving the group member invitation message of BTS, return group member to BTS and invite response message;
BTS also is used for sending self-built group request-reply message to the terminal of initiating self-built group request message;
The terminal of the self-built group of described initiation request message also is used for after receiving self-built group request-reply message, with the group identification information stores of wherein carrying in this locality.
Further,
Initiate the terminal or the described terminal of being invited of self-built group request message, also be used to select self-built group, initiate described cluster multi call by the cluster multi call function key.
The present invention has introduced a kind of method and system that cluster multi call is provided for the self-built group of terminal under standing operational mode at list.Adopt the solution of the present invention, can cause between base station and the base station controller under the Abis link chain rupture situation meeting with outside destroy, or at the Abis link not under the configuring condition, promptly be under the operational mode of single base station, terminal in single base station range can be set up cluster group by the mode of self-built group, and the base station provides the cluster multi call business thus.The present invention program provides the ability of the cluster management and group under the operational mode of single base station, improves base station stability, reliability and availability in case of emergency.
Description of drawings
Fig. 1 is the method flow diagram that existing techniques in realizing is created cluster group;
Fig. 2 is a method flow diagram of realizing cluster multi call under the operational mode of single station of the present invention;
Fig. 3 is the flow chart of an example of application method of the present invention.
Embodiment
Realize the method and system of cluster multi call business under the operational mode of single station provided by the invention, its core main points are, when terminal need be set up cluster group and learn that base station BTS is in single station operational mode, initiate to carry the self-built group request of group member information to BTS; BTS is this self-built group allocation group identification, and notifies the group member terminal to add new group after receiving this self-built group request, then group identification information notice initiated the terminal of self-built group request; Terminal is selected self-built group, initiates group calling by the PTT key.
Below in conjunction with accompanying drawing and preferred embodiment technique scheme of the present invention is described in detail and explains.
As shown in Figure 2, for realizing the method flow diagram of cluster multi call under the operational mode of single station provided by the invention, the network entity that relates in this method comprises terminal and BTS; This method comprises the steps:
210:BTS is responsible for detecting the Abis Link State, break down if detect the Abis link, then revise the self-operating state, enter single base station operational mode, and by Radio Link particular forward channel particular message (as the system parameters message of paging channel) notice terminal;
The mode that BTS detects the state of Abis link includes but not limited to: BTS periodically monitors Link State between BTS and the BSC; BTS is monitoring Link State between BTS and the BSC when BSC sends message failure; BTS then monitors Link State between BTS and the BSC waiting for that BSC message is overtime.
220: the requesting terminal is when knowing that BTS is in single base station operational mode and need sets up cluster group use cluster multi call business, edit or access the group member list information that terminal has been stored, and send to the BTS that is in single station operational mode by the self-built group of request message that Radio Link particular inverse channel will make up;
There is a storage area in above-mentioned terminal: group list is used for storing at least relevant informations such as group identification information and group attribute.
The user comprises at least in the mode of terminal editor group member list information: input and/or user select the mobile terminal number (MDN, Mobile Directory Number) of group member to the user one by one from the contacts list of terminal storage one by one on the man-machine interface that terminal provides.
The user can also set cohort attribute information in terminal editor group member list information process, this information comprises: identification information of group name, group valid expiration date, group creating terminal etc.
The user is after the tabulation of terminal editor group member, and terminal makes up self-built group request message, and the information of wherein carrying comprises at least: group member MDN list of numbers; Particularly, can also comprise: cohort attribute information; Initiate the request of self-built group by the terminal man-machine interface, the method that self-built group request message is sent to BTS comprises one of following variety of way or its combination at least:
The call message of terminal by on Reverse Access Channel, sending (ORM,, Char[i wherein OriginationMessage) to BTS] field carries the MDN list of numbers and the cohort attribute information of group member.
Terminal is by sending data burst message (DBM, Data Burst Message) to BTS, Char[i wherein on Reverse Access Channel and/or reverse traffic channel] field carries self-built group request message.
When group member tabulation and cohort attribute information content more for a long time, Traffic Channel is at first set up in terminal and BTS negotiation, issues to serve in Traffic Channel and states self-built group request message.After the requesting terminal sends self-built group request message, set timer and wait for self-built group request-reply message.
After 230:BTS receives above-mentioned self-built group request message, be this self-built group allocation group identification, and add new group by each member terminal in the tabulation of Radio Link particular forward channel notification group member;
BTS comprises for the mode of this self-built group allocation group identification information: according to the combination in any of the identification information of requesting terminal, current system time information, base station identification information and above-mentioned information, distribute a unique group identification information.
The mode that each member terminal (being invited terminal) in the tabulation of BTS notice group member adds new group may further comprise the steps at least:
230-a, BTS resolve the group member tabulation in the self-built group request message, and structure carries the group member invitation message of group identification information, and other each member terminal (being invited terminal) in the tabulation of notice group member adds new group; The method of notice comprises one of them at least:
BTS periodically sends broadcast on common broadcast channel, wherein carry group identification information and member's list information;
BTS periodically sends broadcast at the paging channel time slot, wherein carries group identification information and member's list information;
BTS sends the beep-page message that carries group identification information and member MDN to each member by parsing the member MDN in member's tabulation one by one on Forward Paging Channel.
The information that can also carry in above-mentioned group member invitation message comprises cohort attribute information at least.
230-b, above-mentioned invited terminal to receive above-mentioned group member invitation message after, with information stores such as group identification information in the group list of self; The method of storage comprises at least:
Invited terminal to receive the group member invitation message that has group identification information and group member tabulation from paging channel time slot and/or broadcast channel, whether contrast self MDN is present in the group member tabulation, if exist, then store group identification information in the group list of self, otherwise abandon message.
BTS calculates the Paging Channel Slot of determining to be invited terminal according to MDN, and sends the group member invitation message that has group identification information and MDN on this time slot; Invited terminal to adopt the same method of arranging with BTS, calculate definite Paging Channel Slot according to MDN, and after receiving the group member invitation message that has group identification information and MDN on this time slot, contrast self MDN whether with above-mentioned group member invitation message in the MDN coupling of carrying, if the coupling, then with the group identification information stores in the above-mentioned group member invitation message in the group list of self.
If also carry cohort attribute information in the group member invitation message, invited terminal storage group identification information in the group list process of self, store cohort attribute information simultaneously.
230-c, invited terminal to reply group member to BTS to invite response message, wherein comprise the MDN information of being invited terminal at least by Reverse Access Channel.
240:BTS passes through the specific forward channel of Radio Link with group identification information notice request terminal on specific opportunity;
The step of BTS notice request terminal comprises at least:
240-a, on specific opportunity, BTS replys by the specific forward channel of Radio Link and has the self-built group request-reply message of group identification information to the requesting terminal;
At least comprise one of following opportunity specific opportunity:
After BTS receives the self-built group request message of requesting terminal transmission;
BTS is after the terminal in the group member tabulation sends the group member invitation message;
BTS is after the terminal in group member tabulation sends the group member invitation message, and after receiving that group member that one of them group member or all group members return is invited response message;
BTS after the terminal in group member tabulation sends the group member invitation message, and wait for certain constantly after.
BTS sends self-built group request-reply message by Forward Paging Channel to the requesting terminal at least.
Also can carry at least in the self-built group request-reply message: the terminal number and/or the MDN information that have successfully added group.
After above-mentioned self-built group request-reply message is received in 240-b, requesting terminal, with the information stores such as group identification information of wherein carrying in the group list of self.The method of storage comprises at least:
Activate the timer of waiting for self-built group request-reply message, the group identification information stores in the group list of self, can also be stored the attribute information of group simultaneously; If carry terminal number and/or the MDN information that successfully adds group in group's request-reply message, store this information, and on end-user interface, show terminal number and/or the MDN information that successfully adds group.
250: terminal is selected self-built group, initiates group calling by the PTT key.
After all terminals of group member were exceeded the time limit in the time limit of group's valid expiration date message identification, the corresponding information of this group of deletion wherein comprised: group identification information and cohort attribute information at least from group list.
Below at said method flow process of the present invention, provide an application example, as shown in Figure 3, the network entity that wherein relates to comprises requesting terminal 302, is invited terminal 304 and base station BTS 306; This example has following steps:
Step 310 when BTS 306 detects Abis Link State unusual (as chain rupture), is revised oneself state, enters single station operational mode.
The testing mechanism that BTS 306 detects the Abis Link State comprises at least: periodically monitor Link State between BTS and the BSC; When sending message failure, BSC monitoring Link State between BTS and the BSC; Then monitor Link State between BTS and the BSC waiting for that BSC message is overtime.
Comprise a storage area in the terminal 302 and 304: group list is used to store group identification information and cohort attribute information; The user can be by selecting particular demographic in group list, and initiate the cluster multi call of selected group by PTT group calling key.
Terminal 302, provide the user interface of the group member tabulation that is used to edit self-built group, the user is by this interface, can import group member MDN number one by one and/or selects this and add group member MDN number in the group member tabulation from toll free number; Simultaneously, also provide the user interface that is used to edit cohort attribute information, this cohort attribute information comprises at least: group name, group valid expiration date etc.
Step 320, the user initiates self-built group request message by terminal 302, and this message sends to BTS 306 by Radio Link particular inverse channel;
Terminal 302 also provides the interface that is used to confirm initiate the request of self-built group, confirms button as one, submits to when being used for the user and clicking this button and confirms order, initiates group and builds group's request.
Information in the self-built group request message comprises at least: group member tabulation also comprises: cohort attribute information, this cohort attribute information comprises at least: the identification information of terminal is created in group name, group valid expiration date, group's request.
Terminal 302 is by the Char[i among the call message ORM that sends on Reverse Access Channel] field carries the MDN list of numbers and the cohort attribute information of group member.After terminal 302 sent self-built group request message, temporary self-built group request relevant information was set timer and is waited for self-built group request-reply message.
Work as timer expiry, when not receiving self-built request-reply message yet, the relevant information of this time self-built group request is removed in the request of this time self-built group of terminal 302 cancellations, shows the request failure of self-built group on terminal interface.
Step 330 after BTS 306 receives self-built group request message, is the unique group identification information of overall situation of this self-built group allocation, as: the ID of group;
Step 340, BTS 306 parses the group member in the self-built group request message, is invited terminal 304 (may not only) to send the group member invitation message to group member, notifies the member to add cluster group;
Step 350, invited terminal 304 to receive the group member invitation message after, with the group identification information stores of wherein carrying in local group list;
Invited terminal 304 to receive the group member invitation message that has group identification information and group member tabulation from paging channel time slot and/or broadcast channel, whether contrast self MDN is present in the group member tabulation, if exist, then store group identification information in the group list of self, otherwise abandon message.
If also carry cohort attribute information in the group member invitation message, invited terminal 304 to store this cohort attribute information simultaneously.
Step 360 is invited terminal 304 to reply group member to BTS 306 by Radio Link particular inverse channel and is invited response message;
The group member information in the response message of inviting comprises the MDN information of being invited terminal at least.
Step 370, BTS 306 after all terminals 304 in group member tabulation send group member invitation message, by the specific forward channel of Radio Link reply have group identification information self-built group request-reply message to the requesting terminal 302;
Except that group identification information, can also carry the terminal (terminal that promptly successfully adds group) number and/or the MDN information that have sent the group member invitation message and received group member invitation response message in this self-built group request-reply message.
After step 380, requesting terminal 302 are received self-built group request-reply message, with the group identification information stores of wherein carrying in local group list.
The timer of waiting for self-built group request-reply message is activated in requesting terminal 302, and the group identification information stores in the group list of self, can also be stored the attribute information of group simultaneously.If carry the terminal number and/or the MDN information that successfully add group in group's request-reply message, above-mentioned terminal number and/or the MDN information that successfully adds group of requesting terminal 302 storages, and on user interface, show terminal number and/or the MDN information that successfully adds group.
Since then, all terminals of group member can be selected self-built group, initiate group calling by the PTT key.
Call message carries the group identification information that BTS 306 distributes in the call establishment, after BTS 306 receives call message, paging group member terminal in base station range, the beep-page message that has above-mentioned group identification information in the paging by transmission on paging channel time slot or broadcast channel, after terminal 302 and 304 is received the beep-page message that has group identification information, judge whether self group list message has corresponding clauses and subclauses, if have, then reply page-response message, set up Traffic Channel and begin the cluster multi call business, nothing then abandons.
All terminals 302 and 304 of group member store group's valid expiration date information of self-built group, after so exceed the time limit in the time limit of group's valid expiration date message identification, terminal 302 and 304 is deleted the corresponding information of this group from group list, wherein comprise group identification information and cohort attribute information at least.
Realize the system embodiment of cluster multi call under the operational mode of single station of the present invention, comprise the requesting terminal, invited terminal and be in base station BTS under the pattern of single station, wherein:
The requesting terminal, be used to edit the group member list information of self-built group, and initiate self-built group request message to base station BTS by Radio Link particular inverse channel, after receiving the self-built group request-reply message that BTS returns, with the group identification information stores of carrying in the message in local group member tabulation;
Be in the BTS under the pattern of single station, be used for after receiving self-built group request message, be self-built group allocation group identification, and by the specific forward channel of Radio Link to being invited terminal to send the group member invitation message, and carry the group identification information of distribution in the message, and, send self-built group request-reply message to the requesting terminal by the specific forward channel of Radio Link on specific opportunity;
Invited terminal, be used for after receiving the group member invitation message of BTS, the group identification information stores of wherein carrying in local group list, and is returned group member to BTS and invited response message.
All terminals of group member all are used to select self-built group, initiate group calling by the PTT key.
Claims (15)
1. a method that realizes cluster multi call comprises: when terminal need be set up cluster group and learn that base station BTS is in single station operational mode, initiate to carry the self-built group request of group member information to described BTS; Described BTS is group identification of this self-built group allocation, and according to the group member information in the described request, notifies the terminal of described group member to add described self-built group after receiving the request of described self-built group.
2. in accordance with the method for claim 1, it is characterized in that, described terminal learns that described BTS is in single station operational mode, be to detect the state of the link between itself and the base station controller BSC when undesired at described BTS, with the self-operating status modifier is described single station operational mode, and by the described terminal of Radio Link particular forward channel notification.
3. according to claim 1 or 2 described methods, it is characterized in that, described group member information is at described terminal editor or the canned data that accesses, and described editor is input and/or select the mobile terminal number MDN of group member to realize in the associated person information of terminal storage one by one one by one on the man-machine interface that provides by described terminal.
4. in accordance with the method for claim 3, it is characterized in that, described terminal also provides the man-machine interface of setting cohort attribute information, and described cohort attribute information comprises at least: group name, group's valid expiration date and the identification information of initiating the terminal of self-built group request; Described cohort attribute information is also carried in the request of described self-built group.
5. in accordance with the method for claim 4, it is characterized in that the mode that described BTS notifies the terminal of described group member to add described self-built group may further comprise the steps at least:
Described BTS resolves described group member information of building in group's request message, and structure carries the group member invitation message of group identification information, and described group member invitation message is sent to the terminal of being invited in the described group member information;
Described invited terminal to receive described group member invitation message after, with the group identification information stores to local.
6. in accordance with the method for claim 5, it is characterized in that the method that described BTS sends described group member invitation message comprises one of following mode at least:
Described BTS periodically sends broadcast on common broadcast channel, wherein carry described group identification information, described group member information and described cohort attribute information;
Described BTS periodically sends broadcast at the paging channel time slot, wherein carries described group identification information, described group member information and described cohort attribute information;
Described BTS sends to each group member one by one on Forward Paging Channel and carries the MDN of described group identification information, described group member and the beep-page message of described cohort attribute information by parsing the mobile terminal number MDN of the group member in the described group member information.
7. in accordance with the method for claim 5, it is characterized in that, the described terminal of being invited receives the group member invitation message that has group identification information and group member information from paging channel time slot and/or broadcast channel, if the MDN of contrast self is present in the described group member information, then store described group identification information, otherwise abandon described group member invitation message.
8. in accordance with the method for claim 5, it is characterized in that, the described terminal of being invited is after receiving described group member invitation message, return group member by Reverse Access Channel to described BTS and invite response message, comprise described mobile terminal number MDN information of being invited terminal in the described response message at least.
9. according to claim 1 or 2 described methods, it is characterized in that described BTS also initiates described group identification notice the terminal of self-built group request.
10. in accordance with the method for claim 9, it is characterized in that described BTS initiates described group identification notice on one of following specific opportunity the terminal of self-built group request:
Receive the self-built group request message of described terminal transmission at described BTS after;
At described BTS after sending the group member invitation message to the terminal of described group member;
Send described group member invitation message at described BTS in terminal to described group member, and after receiving that group member that one of them described group member or all described group members return is invited response message;
Send described group member invitation message at described BTS to the terminal of described group member, and after waiting for certain moment;
The described group identification information of self-built group request-reply message informing that described BTS returns to the terminal of the self-built group of described initiation request by Forward Paging Channel at least; Also carry the number and/or the described MDN information of the terminal that successfully adds described self-built group in the described self-built group request-reply message.
11. according to claim 1 or 2 described methods, it is characterized in that described method also comprises: the described terminal of terminal or the request of the self-built group of described initiation of being invited is selected self-built group, initiates described cluster multi call by the cluster multi call function key.
Realize the system of cluster multi call 12. a list is stood under the operational mode, comprise a plurality of terminals and base station BTS, wherein:
A terminal in described a plurality of terminal is used for when needs are set up cluster group and learnt that described BTS is in single station operational mode the self-built group request message of initiating to carry group member information to described BTS;
Described BTS is used for after receiving self-built group request message, is group identification of self-built group allocation, and according to group member information, and the group member invitation message of carrying group identification information is sent to the terminal of being invited in the described group member information;
The described terminal of being invited is used for after receiving the group member invitation message of described BTS, arrives the described group identification information stores of wherein carrying local.
13. according to the described system of claim 12, it is characterized in that, described terminal learns that described BTS is in single station operational mode, be to detect the state of the link between itself and the base station controller BSC when undesired at described BTS, with the self-operating status modifier is described single station operational mode, and by the described terminal of Radio Link particular forward channel notification.
14. according to claim 12 or 13 described systems, it is characterized in that,
The described terminal of being invited also is used for after receiving the group member invitation message of described BTS, returns group member to described BTS and invites response message;
Described BTS also is used for sending self-built group request-reply message to the described request terminal;
Initiate the terminal of self-built group request message, also be used for after receiving described self-built group request-reply message, with the group identification information stores of wherein carrying in this locality.
15. according to claim 12 or 13 described systems, it is characterized in that,
The terminal of the self-built group of described initiation request message or the described terminal of being invited also are used to select self-built group, initiate described cluster multi call by the cluster multi call function key.
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| CN200810190800A CN101772198A (en) | 2008-12-31 | 2008-12-31 | Method for realizing clustered group calling service and system therefor |
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| CN200810190800A CN101772198A (en) | 2008-12-31 | 2008-12-31 | Method for realizing clustered group calling service and system therefor |
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| CN103812618A (en) * | 2013-12-20 | 2014-05-21 | 杭州承联通信技术有限公司 | Grouped data transmission method for wireless trunked communication system |
| CN103812618B (en) * | 2013-12-20 | 2017-02-01 | 杭州承联通信技术有限公司 | Grouped data transmission method for wireless trunked communication system |
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