CN100413353C - Method of sending short messages from network side to users in trunked communication system - Google Patents
Method of sending short messages from network side to users in trunked communication system Download PDFInfo
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- CN100413353C CN100413353C CNB2005100367721A CN200510036772A CN100413353C CN 100413353 C CN100413353 C CN 100413353C CN B2005100367721 A CNB2005100367721 A CN B2005100367721A CN 200510036772 A CN200510036772 A CN 200510036772A CN 100413353 C CN100413353 C CN 100413353C
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Abstract
The present invention is suitable for the technical field of group communication and provides a method for sending short messages from a network to a user in a group communication system, wherein the method at least comprises the following steps: A. the network respectively calls the user on a PCH channel and a group call downlink FACCH channel; B. the network configures a short message transmission channel for a user terminal and sends a short message to the user through the short message transmission channel. The present invention provides the scheme that the calling user in the group call can simultaneously receives the short message when speaking and listening, and thus, the short message communication in the group call is safe, timely and effective. Therefore, the safety of group calling service is ensured, and short message service is used in time.
Description
Technical field
The invention belongs to the trunking communication field, relate in particular in trunked communication system, the method that the unique user of network in being in the group calling group sends SMS message.
Background technology
Wireless trunking communication system, be called for short group system, be a kind of less expensive of growing up in recent years, command dispatching and communication system more flexibly, be widely used in units such as government bodies, energy traffic, airport harbour, industrial and mining enterprises, fire-fighting police, water conservancy and military affairs, to satisfy the needs of constituent parts intercommunication.
In the present group system, each group comprises a group id ID and group call region, and wherein group call region is defined as the gang sub-district.But these information all are some when opening an account at HLR (Home LocationRegister, attaching position register) and SIM (Subscriber Identity Module, subscriber identification module) fix information of storage in the card, and be unrealized to group calling user's mobile management.
Fig. 1 shows the structure of trunked communication system core net, there is user profile among the HLR, comprise that this user IMSI (International Mobile Subscriber Identity, international mobile subscriber identity), affiliated group ID tabulate (user can belong to 50 groups at most).GMSC (Gateway MobileSwitch Center, gateway mobile switch) links to each other with external network, and GMSC also links to each other with anchor MSC (AnchorMSC).Anchor MSC is in charge of and safeguards a specific VGCS (Voice Group CallService, speech group calls in several business).
Relay MSC (Relay MSC) is when group call region jumps a plurality of MSC, all MSC except that anchor MSC.It between anchor MSC and the relay MSC the tree-shaped relation of one-to-many.VLR (VisitedLocation Register, Visited Location Registor) has the ID tabulation of organizing under user IMSI, this user.When the user roamed, these information copied from HLR and come.
Comprised group ID and group call region among the GCR (Group Call Register, group calls in several register), group call region lumps together with group ID and is called group call reference.Wherein with among the continuous GCR of anchor MSC the dispatcher tabulation relevant, relay MSC tabulation, the directly actuated cell list of anchor MSC have been comprised with this group call reference.The GCR that links to each other with relay MSC has then comprised the anchor MSC address relevant with this group call reference, the cell list that this relay MSC is controlled.
Receive that anchor MSC inquired about this group attribute to the GCR that is connected when request was initiated in group calling.Obtain the cell list under dispatcher's tabulation, relay MSC tabulation and this MSC control.And then call scheduling person, group-calling channel is set up in calling relay MSC and the sub-district under this MSC control, there is group calling to initiate by user in NCH (Notification Channel, the notification channel) group of notifications of each sub-district, and indicates its group-calling channel so that the user monitors in the group.
After relay MSC is received the group calling request of anchor MSC,, in these sub-districts, set up group-calling channel, have group calling to initiate by user in the NCH group of notifications, and indicate its group-calling channel so that the user monitors in the group to the GCR inquiry cell list that is connected.
When initiating a group calling, one group of user in the specific region can join group calling simultaneously and monitor the talker.Can only there be a talker the same time, and after the talker had said, other user can both become the talker by pressing PTT key (Push to talk, press-and-talk).In communication process, Any user can own decision be left midway or join in the group calling midway, and the user who enters group call region can have notice and join midway and lead in the calling.
The speaker can take the uplink group cal channel, monitors descending group-calling channel simultaneously; Network also can distribute an independently up-downgoing dedicated channel separately for the talker.But the descending group-calling channel of hearer's intelligent surveillance.
Short message is carrier transmission Word message with the No.7 nation-wide Network.The size of the information content is limited in about 70 words (140 bytes).Short message is mainly with portable terminal end-to-end transmission and reception, and the transmission between portable terminal and the Internet and be received as the master.
Short message transmits by radio control channel, finishes storage and preceding rotating function through short message breath service center, and the amount of information of each short message is restricted to 140 bytes.The information (plain text) that sends out from transmit leg is stored in short message service center, and then is forwarded to the purpose user terminal.Even because shutdown or other reasons and when can not receive information immediately, system still can preserve information and resend in suitable after a while with regard to meaning when receiving side terminal for this.
In the prior art, the handling process of network when a certain user who is in the group calling sends SMS message is as follows:
1.SC (Service Center, service center) sends SMS message to the mobile network, because this user is among the group calling, learn that by VLR this user is not in connection mode this moment.
2.MSC this user of meeting paging can not receive short message owing to be in the user of group calling at present, so this user ignores this paging request.
3. network repeats repeatedly paging, and after not meeting with a response, it is current not in mobile network that this user is set, and cause value is " Absent Subscriber (user is not in net) ".SC stores this short message, waits for that the user reenters network.
4. after group calling finished, if the user initiates the position renewal or point to point call is set up, then network can " reenter network " with it and be notified to SC, and SC sends to network with this short message, and MSC sends to the user with this message.
When the user of prior art network in being in group calling sends SMS message, be in that the user can not receive short message certainly in the group calling, the user withdraws from before the group calling delay that is inevitable of this section period.Secondly after even if user withdraws from call service group, if this user not initiatively with incident network service, upgrade or newly-built point to point call as the position, the user still can't receive this short message.
Simultaneously, usually every short message has an effective time, exceed this effective time after, SC then can abandon this short message.Therefore, the risk that is dropped of short message is also very big.In addition, the barren paging of MSC repeated multiple times also relatively consumes Radio Resource.
Summary of the invention
The objective of the invention is to solve the network in trunking communication that exists in the prior art and in the user sends SMS message process, have time delay, and have the problem cause the risk that short message loses.
In order to realize goal of the invention, the invention provides the method that network sends SMS message to the user in a kind of trunked communication system, described method comprises the steps: at least
A. network calling user on PCH channel and the descending FACCH channel of group calling respectively carries out the short message paging;
B. network is a user terminal configuration short message transmission channel, and sends SMS message to the user by described short message transmission channel.
When the user was to use the speaker of dedicated channel speech, described short message transmission channel was descending SACCH of group calling or the descending SACCH of Dedicated Signaling Channel.
When the user was to use the speaker of group-calling channel speech, described short message transmission channel was the descending SACCH of group calling.
When the user was the hearer who is in the group calling, described short message transmission channel was the descending SACCH of group calling.
Described method further comprises:
C. after short message finished receiving, the user sent acknowledge message to network.
When the user was to use the speaker of dedicated channel speech, the user sent acknowledge message to network on group call uplink SACCH or the up SACCH of Dedicated Signaling Channel.
When the user was to use the speaker of group-calling channel speech, the user sent acknowledge message to network on group call uplink SACCH.
When the user is the hearer who is in the group calling, when the speaker used the dedicated channel speech, the user sent acknowledge message by group call uplink channel SACCH to network.
When the user is the hearer who is in the group calling, use the group-calling channel speech the speaker, and up link is when being idle condition, the user uses group call uplink SACCH to send acknowledge message to network.
The invention provides user in the group calling in normal speech with receive the scheme of short message when listening to, make that the short message communication in the group calling is safer, timely and effective, guaranteed in group-calling service safety and used short message service in time.
Description of drawings
Fig. 1 is the structure chart of trunked communication system core net;
Fig. 2 is the realization flow figure that network sends SMS message to the user.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
In the present invention, send SMS message in the process in order to solve user's point-to-point of network in being in group calling, there are the risk of losing in time delay that exists during receiving short-message of user and short message, the invention provides user in the group calling in normal speech with receive the scheme of short message when listening to, make that the short message communication in the group calling is safer, timely and effective.
Realization flow when Fig. 2 shows the user of network in being in group calling and sends SMS message:
1.SC according to user ID, short message is sent to SMS-GMSC (short messaging gateway MSC), wherein comprises user's MSISDN (Mobile Subscriber ISDN Number, mobile subscriber ISDN number);
2.SMS-GMSC routing iinformation according to the HLR inquiring user of user MSISDN under the user;
3.HLR returned user position information to SMS-GMSC;
4.SMS-GMSC short message is sent to the MSC of user's correspondence;
5. the MSC of user's correspondence is to the positional information of user VLR inquiring user;
6.VLR return user position information to MSC;
7. because MSC can't determine that the user is general state or group calling state, use the channel of general user's short message paging can not guarantee that the user can receive paging, so, also will paging on the group calling down channel.BSS (Base Station sub-System by the position under the user, base station sub-system) respectively at PCH (Paging Channel, paging channel) and the descending FACCH of group calling (Fast Associated ControlChannel, Fast Associated Control Channel) calling user;
8. after the user receives beep-page message, return page response;
9.MSC, be divided into following several situation for the user selects the short message transmission channel:
(1) when the user was the speaker of use dedicated channel speech, MSC was that descending SACCH of user terminal selecting group calling (Slow Association Control Channel, slow associated control channel) or the descending SACCH of Dedicated Signaling Channel send SMS message;
(2) when the user was the speaker of use group-calling channel speech, MSC sent SMS message for the user disposes the descending SACCH of group calling;
(3) when the user is the hearer who is in the group calling, MSC sends SMS message for the user disposes the descending SACCH of group calling.
10. after receiving short-message of user finished, the user need receive message to network-feedback, if MSC does not receive the affirmation message of user feedback, will repeat to send this short message with certain number of times (less than 10 times):
(1) when the user was the speaker of use dedicated channel speech, user terminal sent acknowledge message to MSC on group call uplink SACCH or the up SACCH of Dedicated Signaling Channel;
(2) when the user was the speaker of use group-calling channel speech, user terminal sent acknowledge message to network on group call uplink SACCH;
(3) when the user is the hearer who is in the group calling, user terminal is divided into two kinds of situations to network transmission acknowledge message to be realized:
A. when the speaker used the dedicated channel speech, user terminal sent acknowledge message by the group call uplink channel to network;
B. speaker when to use group-calling channel speech, up link be idle (idle) state (hearer is not when current area or wait for after up link is idle condition), user terminal can use group call uplink SACCH to come to send acknowledge message to network.
11.MSC after the affirmation message that receives the user terminal transmission, confirm that the user receives short message, sending SMS message to SMS-GMSC sends report;
Send report 12.SMS-GMSC send SMS message to SC.
Therefore when the speaker of MSC in group calling sent SMS message, the speaker did not need to withdraw from call service group, will can not cause the d/d situation of this call service group yet, can receive short message in obedient and speech.Simultaneously, no matter be that the speaker uses the dedicated channel speech, or the speaker uses the group-calling channel speech, the hearer only monitors the group calling down channel.Whole short message service process does not influence the hearer and monitors descending group-calling channel, and the hearer can receive short message in obedient, thus guarantee the user can be when cluster multi call safety, receive short message in time.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. network is characterized in that to the method that the user sends SMS message described method comprises the steps: at least in the trunked communication system
A. network calling user on PCH channel and the descending FACCH channel of group calling respectively carries out the short message paging; B. network is a user terminal configuration short message transmission channel, and sends SMS message to the user by described short message transmission channel.
2. the method for claim 1 is characterized in that, when the user was to use the speaker of dedicated channel speech, described short message transmission channel was descending SACCH of group calling or the descending SACCH of Dedicated Signaling Channel.
3. the method for claim 1 is characterized in that, when the user was to use the speaker of group-calling channel speech, described short message transmission channel was the descending SACCH of group calling.
4. the method for claim 1 is characterized in that, when the user was the hearer who is in the group calling, described short message transmission channel was the descending SACCH of group calling.
5. the method for claim 1 is characterized in that, described method further comprises:
C. after short message finished receiving, the user sent acknowledge message to network.
6. method as claimed in claim 5 is characterized in that, when the user was to use the speaker of dedicated channel speech, the user sent acknowledge message to network on group call uplink SACCH or the up SACCH of Dedicated Signaling Channel.
7. method as claimed in claim 5 is characterized in that, when the user was to use the speaker of group-calling channel speech, the user sent acknowledge message to network on group call uplink SACCH.
8. method as claimed in claim 5 is characterized in that, when the user is the hearer who is in the group calling, when the speaker used the dedicated channel speech, the user sent acknowledge message by group call uplink channel SACCH to network.
9. method as claimed in claim 4 is characterized in that, when the user is the hearer who is in the group calling, uses the group-calling channel speech the speaker, and up link is when being idle condition, and the user uses group call uplink SACCH to send acknowledge message to network.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100367721A CN100413353C (en) | 2005-08-19 | 2005-08-19 | Method of sending short messages from network side to users in trunked communication system |
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| CNB2005100367721A CN100413353C (en) | 2005-08-19 | 2005-08-19 | Method of sending short messages from network side to users in trunked communication system |
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| CN100413353C true CN100413353C (en) | 2008-08-20 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103200533B (en) * | 2012-01-10 | 2016-12-14 | 普天信息技术有限公司 | A kind of implementation method of cluster short information service |
| CN106936685A (en) * | 2015-12-30 | 2017-07-07 | 航天信息股份有限公司 | A kind of means of communication and system based on real-time, interactive |
| CN109391911B (en) * | 2017-08-14 | 2022-02-15 | 成都鼎桥通信技术有限公司 | Short message sending method and base station of broadband cluster |
| CN110049455A (en) * | 2018-01-17 | 2019-07-23 | 普天信息技术有限公司 | A kind of cluster group short message sends and receives processing method and processing device |
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