CN100372433C - Method for building service of private call - Google Patents
Method for building service of private call Download PDFInfo
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- CN100372433C CN100372433C CNB2004100710990A CN200410071099A CN100372433C CN 100372433 C CN100372433 C CN 100372433C CN B2004100710990 A CNB2004100710990 A CN B2004100710990A CN 200410071099 A CN200410071099 A CN 200410071099A CN 100372433 C CN100372433 C CN 100372433C
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Abstract
The present invention discloses a method for establishing the service of a private call. In the method, when a calling mobile station MS of the private call initiates the private call to network sides which are a signaling channel assigned by the calling MS and an A interface CIC circuit, and voice of the private calling party is sent to the A interface CIC circuit. The network sides accomplish the assignment of a calling channel of the private called small area group and sends the voice of the private calling party on the A interface CIC circuit to the calling channel of the private called small area group. The scheme of the present invention solves the problems that in the prior art, when a private call is realized by a VGCS, a group call and the area of the group call between two users have to be defined in advance, which cause the serious wastes of an A interface resource SCCP connection and a CIC. The scheme of the present invention not only realizes the fast establishment of the service of the private call, but also does not waste system resources.
Description
Technical field
The present invention relates to the technology of setting up of secret call service, relate to a kind of method of setting up secret call service or rather.
Background technology
At present, the trunking communication network is used for each department on a large scale.Build the trunking communication network of thinking development for adopting the cluster private network, because its technology is different with standard, each group often independently builds group system, the construction situation that obvious so easy formation is done things in his own way, this drawbacks such as frequency utilization inefficiency, network construction cost and network operation expense height of network will inevitably occur.
Along with the trunking communication technology is developed by simulation-to-digital, the cluster network construction presents independent private network construction to the trend of cluster common network Construction Party to development.Because global system for mobile communications (GSM) technical system advanced person, and in worldwide, has user base the most widely, therefore, develop the development trend that had both met the cluster common network based on the digital cluster system of GSM, can also possess the basis of good development group service technology.The international standard GSM-R that a cover is used for the railway mobile communication has been made in Europe at present.GSM-R as service bearer, can provide that (EMLPP) is professional, (VGCS) is professional and (VBS) basic cluster communication service such as business with the gsm communication technology.
At present, the special-purpose group digital systems of international and domestic two big main flows can both be supported the applied business at special cluster department, such as secret call service.Individual call has following characteristics: individual call initiation and speech authority are seized and are all adopted press-and-talk (PTT) pattern, and the settling time of individual call is very short, and individual call adopts semiduplex pattern.Specifically, individual call is the special group calling dispatch call between interior two travelling carriages of group's scope, its group call region only comprises the sub-district at the current place of individual call both sides, group call region is along with individual call both sides' mobile dynamic mapping, but always include only the current area at calling and called travelling carriage place, like this, private talker in the sub-district of this group call region and hearer just can carry out individual call.Individual call adopts half-duplex mode communication: pinning the PTT key can speak, and unclamp the PTT key and then can only understand, and the talker is in the group calling sending mode, and the hearer then is in the group calling receiving mode.When the individual call both sides are in same sub-district following time, both sides share the down channel of this voice service channel (TCH), by the PTT mode this TCH up channel are seized; As individual call both sides during at different districts, take a wireless channel respectively, both sides still fight for the speaking right profit by the PTT mode.
Gsm system does not provide secret call service, but the VGCS business that GSM-R provided in group, have only under two users' the situation, from the operating characteristic of business, possess the fundamental characteristics of individual call.For the VGCS business, group wherein and group call region need pre-defined, and individual call occurs between two users, so the individual call that may occur in the group system is very many, and obviously, pre-defined so many groups are impossible basically.If support moving flexibly of individual call customer location, the pairing zone of action of individual call user also is unsuitable for pre-defined, that is to say, the pairing group call region of individual call can't be pre-defined.In addition, individual call both sides travelling carriage does not in fact need to be provided with all CIC circuit and resource signaling connects control section (SCCP), and the VGCS service needed is equal to the SCCP of number of cells in the Abis interface setting of travelling carriage, and need to distribute the Abis interface CIC that is equal to number of cells, the obvious so a large amount of resource of network side consumption that can make group system makes the individual call capacity that system supported greatly reduce.
Therefore, if in gsm system, realize individual call, then can bring these problems by the VGCS business in the GSM-R system:
1) group calling between must pre-defined two users, and the individual call that may occur in the system is very many, therefore is difficult to pre-defined;
2) the scheduling group calling position between pre-defined two users of needs, same being difficult to realized;
3) the A interface resource SCCP connection and the CIC wasting of resources are more serious.
In addition, because the user in the group-calling service often can not add simultaneously, therefore present group-calling service need send a notification message on the NCH channel periodically, can participate in group calling with the user who adds after an action of the bowels.And for secret call service, have only called two users of secret caller and secret, can not have situation about adding behind the user, there is no need fully on notification channel (NCH), periodically to send a notification message, therefore, adopt the processing scheme of VGCS business realize individual call will inevitably the increase system in the channel capacity of NCH.
In fact, can also set up scheme by the point to point call of gsm system and set up individual call, still, the speed of setting up of this scheme is very slow, usually needs the time in several seconds, and this is for individual call, be insupportable, therefore this scheme is not suitable for the foundation of individual call.
In sum, present GSM does not provide secret call service.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method of setting up secret call service.
For reaching above purpose, technical scheme of the present invention is achieved in that a kind of method of setting up secret call service, and this method may further comprise the steps:
A. the caller mobile station MS of individual call is when network side is initiated individual call, and network side is a caller MS assignment A interface CIC circuit, and the speech of secret caller is sent to A interface CIC circuit;
B. network side is finished the called sub-district group calling of secret Channel Assignment, and the secret caller speech on the A interface CIC circuit is delivered on the group-calling channel of the called sub-district of secret.
Among the described step a, described network side further comprises for before the caller MS assignment A interface CIC circuit: for caller MS assignment voice service channel TCH as signaling channel;
Described network side is that caller MS assignment A interface CIC circuit comprises: revise this TCH channel, amended TCH channel as group-calling channel, and is set up the CIC circuit of A interface.
Among the described step a, described network side further comprises for before the caller MS assignment A interface CIC circuit: for caller MS assignment Separate Dedicated Control Channel SDCCH as signaling channel;
Described network side is that caller MS assignment A interface CIC circuit comprises: be caller MS assignment TCH channel, and set up the CIC circuit of A interface.
Among the described step b, described network side is finished the called sub-district group calling of secret Channel Assignment and comprised: network side sends the group calling notification message that no channel is described in the called lane place of secret; Judge whether to receive the response message of called MS afterwards, if then determine sub-district, called MS place, and be this cell allocation group-calling channel, otherwise notice caller MS called MS is not on the throne, and finishes current handling process according to this response message.
Described network side comprises at the group calling notification message that the called lane place of secret sends no channel description: the moving exchanging center MSC of network side sends to base station sub-system BSS and comprises called location area information and show the individual call assignment request message that postpones to distribute group-calling channel; BSS obtains called location area information from the individual call assignment request message, and sends the group calling notification message that no channel is described in called lane place.
Among the described step b, described network side is finished the called sub-district group calling of secret Channel Assignment and comprised: network side is pairing all the cell allocation group-calling channels in the called lane place of secret, and issues the group calling notification message that comprises the channel description to each sub-district; Network side also judges whether the response message of receiving that the secret called MS is returned, if, then definite this called MS is returned the group-calling channel of the employed group-calling channel of response message for this called MS, otherwise, notice caller MS called MS is not on the throne, be released to the group-calling channel of all cell allocation of the called lane place of secret correspondence, and finish current handling process.
Described network side is that pairing all the cell allocation group-calling channels in the called lane place of secret comprise: the MSC of network side sends to BSS and comprises called location area information and show the individual call assignment request message that distributes group-calling channel immediately, BSS is pairing all the cell allocation group-calling channels in the called lane place of secret after receiving this message;
Described network side issues to each sub-district by BSS and comprises the group calling notification message that channel is described.
Described called MS is monitored the message whether this travelling carriage of paging is arranged on notification channel, if having, then return response message to network side; Otherwise, continue to monitor.
This method may further include: network side is being answered the speech of caller to caller MS prompting called MS by connection message.
This method can further include: whether network side judges secret caller MS and called MS in same sub-district, if then the secret called MS is assigned on the group-calling channel at secret caller MS place; Otherwise finish current handling process.
The present invention program distributes A interface CIC circuit by network side for caller MS, and the speech of secret caller is distributed to this A interface CIC circuit in advance, and by network side after finishing the called sub-district group calling of secret Channel Assignment, secret caller speech on the A interface CIC circuit is sent on the group-calling channel of the called sub-district of secret, the system that makes does not need group calling and group call region between pre-defined two two users as VGCS is professional, the PTT that can satisfy individual call calls out and initiates and the call seizing function, thereby has realized the foundation of secret call service.
The present invention program only distributes group-calling channel to be connected and the CIC circuit with relevant A interface SCCP to current calling and called MS, and only when issuing a notice message, utilized the NCH channel, can not take the capacity of NCH channel in a large number, therefore solve the wasting of resources problem that exists when VGCS group calling scheme is used for individual call.
And the present invention program directly sets up the called group-calling channel of secret by the BSS of network side, can promote the performance of setting up of individual call, accelerates the foundation of the end-to-end transmission channel of secret calling and called, makes the called speech that can hear the secret caller as early as possible of secret.
Description of drawings
The individual call that Fig. 1 postpones allocated channel for the present invention program is set up the message flow sequential chart of scheme;
Fig. 2 for the present invention program immediately the individual call of allocated channel set up the message flow sequential chart of scheme;
Fig. 3 is the called message flow sequential chart that does not have response of secret among the present invention program.
Embodiment
Below in conjunction with drawings and the specific embodiments the present invention program is described in further detail.
Referring to Fig. 1, the individual call of delay distribution group-calling channel of the present invention is set up scheme and is realized by following steps:
Step 101～102, caller MS are when needs make a call, to base station sub-system (BSS) channel request (CH_REQ); BSS sends Assignment Command (IMM_ASS) immediately to caller MS after receiving channel request.
Assignment Command can assignment Separate Dedicated Control Channel (SDCCH) immediately for this, also can assignment TCH channel.
Step 103, caller MS report the order of setting up channel immediately to BSS on the channel of assignment after receiving Assignment Command, i.e. SABM (IMM_SETUP).
Comprise the individual call reference information in this foundation order.
Step 104～105, BSS send A interface SCCP connection to mobile switching centre (MSC) and set up message (COM_L3_INFO) after receiving the foundation order, and MSC is corresponding A interface CIC circuit for caller MS sets up; And to the affirmation information (UA (IMM_SETUP)) of caller MS transmission at foundation order immediately.
Step 107, MSC are to the A interface assignment request (ASS_REQ) of BSS transmission at secret caller MS.
MSC can also initiate to carry out the optional flow process of authentication ciphering, shown in the step 106 of Fig. 1 after receiving that message is set up in the SCCP connection.The process that MSC carries out authentication is: the information of carrying according to the IMMEDIATE_SETUP that receives is judged the calling and called MS secret call service of whether having contracted, and whether calling and called MS belongs to a VPN.
Step 108～109, BSS initiate corresponding processing command at the pairing channel of Assignment Command in the step 102 to caller MS after receiving A interface assignment request; Caller MS carries out accordingly and handles after receiving this processing command, and returns confirmation after processing finishes.
These two performed operations of step are to be the situation of TCH channel at the pairing channel of Assignment Command in the step 102, in this case, only need make corresponding modification to the TCH of assignment before, promptly can be used as group-calling channel and use.That is to say that BSS sends CH_MOD_MODFY to caller MS; Caller MS is making amendment to TCH, and after setting up the CIC circuit, returns CH_MOD_MODFY_ACK to BSS.
If the pairing channel of Assignment Command is the SDCCH channel in the step 102, then these two steps should be the flow process of assignment TCH channel.Specifically, BSS is that caller MS sends Assignment Command message (ASS_CMD) on for the special-purpose connection of the SD of caller MS assignment; Caller MS is setting up the TCH channel according to this order, and after setting up the CIC circuit, returns assignment to BSS and finish message (ASS_CMP).
Step 110, BSS confirm that this A interface assignment finishes after receiving the affirmation information that caller MS sends, also promptly set up at the group-calling channel of caller MS and finish, and send assignment to MSC and finish message (ASS_COMP).
After the assignment group-calling channel was finished, the speech information of secret caller can be by this Channel Transmission to network side.
Step 111, MSC send individual call assignment request message (BSSMAP_VPCS_ASS_REQ) to BSS after the A interface of confirming assignment caller MS is finished.
This assignment request message is the SCCP connection request, also is the CR request message, the CIC that has set up before having comprised in this message, called location area information (LAC) or cell list information, and show and postpone allocated channel or allocated channel immediately.This message still is SCCP link setup request message, can trigger BSS by this message and eat dishes without rice or wine to send group calling notification message (NOTIFICATION) at the Um of related cell.In the present embodiment, what BSSMAP_VPCS_ASS_REQ showed is to postpone allocated channel.
MSC also delivers to the speech information of secret caller MS on the entrained A interface CIC circuit of this message.
Step 112, BSS send NOTIFICATION to called MS, also are the secret notification message.
The broadcast announcement message that comprises called lane place BSC all sub-districts in the lane place in this message because the BSSMAP_VPCS_ASS_REQ that MSC sent shows the delay allocated channel, so does not have channel to describe in the notification message.
Step 113, called MS are after receiving the secret notification message, monitoring informing business channel (NCH), if detect self by the individual call paging, then the Common Control Channel RACH by gsm system sends the channel request message (CH_REQ) of setting up group-calling channel to BSS.
Step 114, BSS send the request message of assignment SD channel (IMM_ASS) immediately to called MS after receiving the channel request message that called MS is sent, to set up the SD Dedicated Signaling Channel at called MS.
Step 115, called MS are set up the SDCCH channel after receiving IMM_ASS message, report the link setup frame to BSS afterwards, i.e. SABM (VPCS_NOTIFY_RESPONSE), and carry secret push-notification-answer information.
BSC among step 116～117, the BSS sends the individual call assignment to MSC and finishes message (VPCS_ASS_CMP), wherein carry the called response message of secret, also carry the information of sub-district, called place, being used for MSC distinguishes this individual call and belongs to individual call in minizone individual call or the sub-district, for the individual call in the sub-district, therefore calling and called can adopt same group-calling channel, can economizing group-calling channel; BSS also sends the SDCCH channel release message to called MS, and promptly CHAN_RELEASE (TCH) discharges the SDCCH channel, and sets up TCH.
Till the step 116, BSS has finished the distribution of the called sub-district of secret group-calling channel, and the bottom of finishing A interface CIC and the called place of secret cell channel land circuit continues, and speech is sent on the group-calling channel of the called response of secret sub-district afterwards.Also promptly by above-mentioned steps, calling and called transporting speech end to end can be set up, and secret can be monitored the speech on the group-calling channel called this moment.
Step 118, called MS discharge this SDCCH channel after receiving the SDCCH channel release message that BSS sends, and send the special-purpose response (DISC) that connects release of SDCCH to BSS.
Step 119, MSC send the connection message (CONNECT) that comprises the called information on the throne of secret to caller MS, so that called message of answering is informed the secret caller after receiving the individual call assignment request message that BSS sends.
Caller MS can converse with the called secret of carrying out after receiving this message.
Step 120, MSC determine that at the VPCS_ASS_CMP that step 116 is sent this individual call is the individual call in the sub-district according to BSS, therefore MSC sends secret caller assignment request message (ASS_REQ) to BSS, with on the called group-calling channel that assigns to the caller place of secret.
That is to say, if calling and called in same sub-district, then MSC can require on the called group-calling channel that assigns to secret caller place of secret, so that calling and called MS shared channel.
After step 121, BSS receive the assignment request that MSC sends, send Assignment Command message (ASS CMD) to the secret called MS.
Step 122～123, called MS change to the group-calling channel at secret caller MS place with self group-calling channel after receiving Assignment Command, send assignment to BSS afterwards and finish message (ASS_CMP); BSS sends the assignment of A interface to MSC again and finishes message (ASS_COMP).
Step 124, the special-purpose dispose procedure that connects of secret calling and called response SD.
The purpose of this step is the signaling channel that the releasing network side is distributed in the calling and called signaling process, the Assignment Command immediately that is sent according to above-mentioned steps 102, the signaling channel that is distributed may be the SDCCH channel, also may be to be used as the TCH channel that the SDCCH channel uses.
In the above-mentioned processing procedure, MSC shows the delay allocated channel in the BSSMAP_VPCS_ASS_REQ that step 111 sent, and in fact, can also adopt the processing procedure of allocated channel immediately, this processing procedure as shown in Figure 2, its subsequent process and Fig. 1 are different.Below in conjunction with Fig. 2, this processing procedure is described.
Because step 101～110 processing of being done are identical, therefore repeat no more.Below only the step after the step 110 among Fig. 2 is elaborated.
Step 211, MSC send individual call assignment request message, i.e. BSSMAP_VPCS_ASS_REQ to BSS after the group-calling channel of confirming the caller of assignment secret is finished.
Show in this request message and need distribute the called group-calling channel of secret immediately.
After step 212, BSS receive the assignment request message that MSC sends, all cell allocation group-calling channels in the called lane place of secret, and the speech information of secret caller MS on the A interface CIC circuit is distributed on the group-calling channel that is distributed, sending NOTIFICATION (WITH CHANNEL DESCRIPTION) message to called MS afterwards, also is the secret notification message.
Because MSC requires to distribute group-calling channel immediately, so the NOTIFICATION message that BSS sent is carried the channel descriptor.
Step 213, called MS insert message (UPLINK ACCESS) to BSS reporting uplink link on group-calling channel after receiving NOTIFICATION message.
Step 214, BSS issue uplink acknowledgment message (UPLINK GRANT) to called MS.
Step 215, called MS report to BSS and to set up frame after receiving acknowledge message, i.e. SABM (VPCS_NOTIFY_RESPONSE), and carry secret push-notification-answer information.
Step 216～217, BSS return link setup acknowledgement frame (UA (VPCS_NOTIFY_RESPONSE)) to called MS, carry the called response message of secret in this frame equally; And send the individual call assignment to MSC and finish message (VPCS_ASS_CMP), carrying the cell information at called response message of secret and called MS place in this message, still is individual call in the sub-district so that MSC distinguishes current individual call for the minizone individual call.
Because in the above-mentioned steps 212, BSS is that group-calling channel has all been distributed in pairing all sub-districts, called MS position district, behind the sub-district of having determined the called MS place, for avoiding causing the waste of channel resource, the group-calling channel resource of the cell allocation that responds for non-called MS before BSS can also discharge.
In fact, the processing that above-mentioned steps 215～216 is realized can directly be realized by step 213 and 214, that is to say, when called MS inserts message at the reporting uplink link, can report the link setup frame that carries the called response message of secret simultaneously, BSS finishes continuing of bottom speech after receiving this access message, and directly return VPCS_ASS_CMP message to MSC, also promptly enter above-mentioned steps 217.
Step 218, BSS send SD channel release message (CHAN_RELEASE (TCH)) to called MS, and called MS discharges this SDCCH channel after receiving this release message, and forward the speech that this TCH goes up the caller of monitoring secret to.
The entrained TCH of this message is that network side is the group-calling channel of sub-district, called MS place.
Different with processing procedure shown in Figure 1 is, owing to be to set up group-calling channel fast, so called MS need not be returned the response message that discharges channel, i.e. DISC to BSS.
So far, secret calling and called travelling carriage transmission channel is end to end thoroughly set up, the called speech that can hear caller of secret.
Step 219, MSC send the CONNECT message that comprises the called information on the throne of secret to caller MS, so that called message of answering is informed the secret caller after receiving that message (VPCS_ASS_CMP) is finished in individual call assignment that BSS sends.
Caller MS can converse with the called secret of carrying out after receiving this message.
Step 220, MSC also can determine that current individual call still is an individual call in the sub-district for the minizone individual call according to the VPCS_ASS_CMP that receives in the step 217, if individual call in the sub-district, then MSC sends secret caller assignment request message (ASS_REQ) to BSS, caller MS is assigned to the group-calling channel at secret called MS place by this assignment request.
Step 221～222, BSS send Assignment Command message (ASS_CMD) to the secret called MS after receiving ASS_REQ; Called MS will self assign on the group-calling channel at caller MS place, and returns assignment to BSS and finish message (ASS_CMP).
Step 223, BSS send the assignment of A interface to MSC again and finish message (ASS_COMP).
Step 224, the special-purpose dispose procedure that connects of secret calling and called response SDCCH.
The purpose of this step is the signaling channel that the releasing network side is distributed equally in the calling and called signaling process, the Assignment Command immediately that is sent according to above-mentioned steps 102, the signaling channel that is distributed may be the SDCCH channel, also may be to be used as the TCH channel that the SDCCH channel uses.
By said process, also can realize setting up fast secret calling and called transmission channel end to end.
No matter be the called group-calling channel of assignment secret immediately, or the called group-calling channel of delay assignment secret, the called situation of not returning response of secret all may appear, and this situation is as shown in Figure 3.This processing procedure mainly be secret is called do not return response after, different processing has appearred, therefore also, step 101～110 processing of being done are identical with preceding two kinds of processing procedures, repeat no more.Only the step after the step 110 among Fig. 3 is done detailed explanation below.
Step 311, MSC send BSSMAP_VPCS_ASS_REQ to BSS after the group-calling channel of confirming the caller of assignment secret is finished.
If wish to postpone to distribute the called group-calling channel of secret, then in this message, show to postpone to distribute, if wish to distribute immediately, then in this message, show immediately and distribute.
After step 312, BSS received the BSSMAP_VPCS_ASS_REQ that MSC sends, all sub-districts in the called lane place of secret issued group calling notification message, i.e. NOTIFICATION.
If allocated channel immediately then distributes group-calling channel in this step, and in this message, carry the channel that is distributed and describe.
If step 313～314 BSS do not receive the response of secret called MS yet behind timer expiry, and in the step 312 for this BSS has distributed group-calling channel, then discharge the group-calling channel distributed; And send Assignment Failure message (VPCS_ASS_FALL), and comprise the information of the called response of no secret in this message to MSC.
Step 315～317, MSC send the message that is used to remove the relevant special-purpose connection of the called assignment request of secret, i.e. CLEAR CMD to BSS after receiving VPCS_ASS_FALL; And to caller MS transmission TERMINATION message, this message comprises the called message not on the throne of secret, and the MS of secret caller afterwards discharges the dedicated channel of self.
Because called MS is response not, is not the called MS assigned with dedicated channel in the current processing procedure, therefore do not need to discharge the dedicated channel of called MS.
The above only is the present invention program's preferred embodiment, not in order to limit protection scope of the present invention.
Claims (10)
1. a method of setting up secret call service is characterized in that, this method may further comprise the steps:
A. the caller mobile station MS of individual call is when network side is initiated individual call, and network side is a caller MS assignment A interface CIC circuit, and the speech of secret caller is sent to A interface CIC circuit;
B. network side is finished the called sub-district group calling of secret Channel Assignment, and the secret caller speech on the A interface CIC circuit is delivered on the group-calling channel of the called sub-district of secret.
2. method according to claim 1 is characterized in that among the described step a, and described network side further comprises for before the caller MS assignment A interface CIC circuit: for caller MS assignment voice service channel TCH as signaling channel;
Described network side is that caller MS assignment A interface CIC circuit comprises: revise this TCH channel, amended TCH channel as group-calling channel, and is set up the CIC circuit of A interface.
3. method according to claim 1 is characterized in that among the described step a, and described network side further comprises for before the caller MS assignment A interface CIC circuit: for caller MS assignment Separate Dedicated Control Channel SDCCH as signaling channel;
Described network side is that caller MS assignment A interface CIC circuit comprises: be caller MS assignment TCH channel, and set up the CIC circuit of A interface.
4. method according to claim 1 is characterized in that among the described step b, and described network side is finished the called sub-district group calling of secret Channel Assignment and comprised: network side sends the group calling notification message that no channel is described in the called lane place of secret; Judge whether to receive the response message of called MS afterwards, if then determine sub-district, called MS place, and be this cell allocation group-calling channel, otherwise notice caller MS called MS is not on the throne, and finishes current handling process according to this response message.
5. method according to claim 4, it is characterized in that described network side comprises at the group calling notification message that the called lane place of secret sends no channel description: the moving exchanging center MSC of network side sends to base station sub-system BSS and comprises called location area information and show the individual call assignment request message that postpones to distribute group-calling channel; BSS obtains called location area information from the individual call assignment request message, and sends the group calling notification message that no channel is described in called lane place.
6. method according to claim 1, it is characterized in that among the described step b, described network side is finished the called sub-district group calling of secret Channel Assignment and comprised: network side is pairing all the cell allocation group-calling channels in the called lane place of secret, and issues the group calling notification message that comprises the channel description to each sub-district; Network side also judges whether the response message of receiving that the secret called MS is returned, if, then definite this called MS is returned the group-calling channel of the employed group-calling channel of response message for this called MS, otherwise, notice caller MS called MS is not on the throne, be released to the group-calling channel of all cell allocation of the called lane place of secret correspondence, and finish current handling process.
7. method according to claim 6, it is characterized in that, described network side is that pairing all the cell allocation group-calling channels in the called lane place of secret comprise: the MSC of network side sends to BSS and comprises called location area information and show the individual call assignment request message that distributes group-calling channel immediately, BSS is pairing all the cell allocation group-calling channels in the called lane place of secret after receiving this message;
Described network side issues to each sub-district by BSS and comprises the group calling notification message that channel is described.
8. according to claim 4 or 6 described methods, it is characterized in that described called MS is monitored the message whether this travelling carriage of paging is arranged on notification channel, if having, then return response message to network side; Otherwise, continue to monitor.
9. method according to claim 1 is characterized in that, this method further comprises: network side is being answered the speech of caller to caller MS prompting called MS by connection message.
10. method according to claim 1 is characterized in that, this method further comprises: whether network side judges secret caller MS and called MS in same sub-district, if then the secret called MS is assigned on the group-calling channel at secret caller MS place; Otherwise finish current handling process.
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| CNB2004100710990A CN100372433C (en) | 2004-07-28 | 2004-07-28 | Method for building service of private call |
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| CNB2004100710990A CN100372433C (en) | 2004-07-28 | 2004-07-28 | Method for building service of private call |
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| CN101056431A (en) * | 2006-04-13 | 2007-10-17 | 华为技术有限公司 | An access method of group call cell |
| CN100455071C (en) * | 2006-04-30 | 2009-01-21 | 华为技术有限公司 | Method and system for realization of sharing A interface circuit in cluster call |
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|---|---|---|---|---|
| JPH1032534A (en) * | 1996-07-15 | 1998-02-03 | Hitachi Denshi Ltd | System for setting and releasing secret call in radio communication system |
| US6564049B1 (en) * | 1999-05-10 | 2003-05-13 | Ericsson Inc. | Methods and systems for providing group calls with reduced setup times |
| US20030153339A1 (en) * | 2002-02-14 | 2003-08-14 | Crockett Douglas M. | Method and an apparatus for adding a new member to an active group call in a group communication network |
| CN1494331A (en) * | 2002-10-31 | 2004-05-05 | 深圳市中兴通讯股份有限公司 | Mobile communication system and method for realizing mass business |
| US20040121791A1 (en) * | 2002-12-18 | 2004-06-24 | May Nigel M. | Call setup for a mobile packet data dispatch network |
| US20040120497A1 (en) * | 2002-12-23 | 2004-06-24 | Siemens Information And Communication Networks, Inc. | Carrier identification codes (CIC) conversion |
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2004
- 2004-07-28 CN CNB2004100710990A patent/CN100372433C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1032534A (en) * | 1996-07-15 | 1998-02-03 | Hitachi Denshi Ltd | System for setting and releasing secret call in radio communication system |
| US6564049B1 (en) * | 1999-05-10 | 2003-05-13 | Ericsson Inc. | Methods and systems for providing group calls with reduced setup times |
| US20030153339A1 (en) * | 2002-02-14 | 2003-08-14 | Crockett Douglas M. | Method and an apparatus for adding a new member to an active group call in a group communication network |
| CN1494331A (en) * | 2002-10-31 | 2004-05-05 | 深圳市中兴通讯股份有限公司 | Mobile communication system and method for realizing mass business |
| US20040121791A1 (en) * | 2002-12-18 | 2004-06-24 | May Nigel M. | Call setup for a mobile packet data dispatch network |
| US20040120497A1 (en) * | 2002-12-23 | 2004-06-24 | Siemens Information And Communication Networks, Inc. | Carrier identification codes (CIC) conversion |
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| CN1728874A (en) | 2006-02-01 |
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