CN1802001A - Group call channel resource managing method in mobile communication system - Google Patents
Group call channel resource managing method in mobile communication system Download PDFInfo
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- CN1802001A CN1802001A CN 200410102959 CN200410102959A CN1802001A CN 1802001 A CN1802001 A CN 1802001A CN 200410102959 CN200410102959 CN 200410102959 CN 200410102959 A CN200410102959 A CN 200410102959A CN 1802001 A CN1802001 A CN 1802001A
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Abstract
Said invention provides a group calling channel resource managing method in mobile communication system. It contains base station subsystem defining down detecting message to cell down user terminal and proceeding detecting, and proceeding channel resource manager according to down user detecting result. Said invention fully considers protocol compatibility and has simple implementation method, ensuring releasing group calling channel accuracy, thereby realizing saving system resources enhancing system resources utilization.
Description
Technical field
The present invention relates to the mobile communication technology field, be specifically related to the management method of group-calling channel resource in a kind of mobile communication system.
Background technology
According to mobile subscriber group's different characteristics, mobile communication can be divided into public mobile communication and specialized mobile radio.Specialized mobile radio is mainly that each specialized department is inner to be used, and the special mobile communication of each specialized department has different separately frequencies, different business and network demand separately.
Entered since the nineties, along with the development of digital public mobile communication, the digital private mobile communication causes people's attention just gradually.
European UIC in 1993 (European railway alliance) decision is with the basic platform of GSM (global system for mobile communications) as European following railway mobile communication business, ETSI SMG (the special mobile communication group of ETSI) has introduced ASCI (advanced audio call) in GSM phase 2+ standard, the basic function that specifically comprises priority service, VBS (voice broadcast call business), VGCS specialized mobile radios such as (voice group call services), and it is applied to railway, be referred to as GSMR (global railway mobile communication system).
GT800 (GSM 800M digital cluster system) except that possessing above-mentioned ASCI basic function, also provides cluster common network operation ability, to adapt to the development need of building the cluster common network from now on based on the GSM platform.The GT800 system can carry out the scheduling of class private network on the common network basis, mandate department can carry out the scheduling of the trans-departmental private network of emergency cooperative.
The voice group call service VGCS of GT800 and GSMR system provides a kind of half-duplex communication mode.Be characterized in communication process, synchronization has only a user terminal to talk, other user terminal that is in the group call region all is in the state of listening, the authority that user terminal can obtain to talk by PTT (Push To Talk press-and-talk) function.
There are the lower problem of resource utilization ratio in GT800 and GSMR in carrying out the VGCS process.
At present, mainly adopt following two kinds of methods to carrying out in the VGCS process to the group-calling channel resource of cell allocation manages, to improve resource utilization ratio:
Method one: delay assignment function.The delay assignment function is meant when user terminal is initially initiated the VGCS calling, be not each the cell allocation group-calling channel in the group call region immediately, when the sub-district in detecting group call region exists user terminal to monitor,, be this cell allocation group-calling channel resource by the push-notification-answer flow process.
Method two: descending measuring ability.Descending measuring ability is meant when user terminal is initially initiated the VGCS calling, be each the cell allocation group-calling channel resource in the group call region immediately, judge by descending testing process whether each sub-district in the group call region exists the user terminal of monitoring then, if determine not have the user terminal of monitoring in certain sub-district, then discharge the group-calling channel of this sub-district.
Assignment Requirement field in VGCS ASSIGNMENT REQUEST (the VGS assignment request) message that base station sub-system is come by mobile switching centre transmission is determined the management method of group-calling channel resource in the calling of VGCS.
The definition of the Assignment Requirement field in the VGCS ASSIGNMENT REQUEST message is as shown in table 1:
Table 1
octet 1octet 2
| 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
| Elementi identifier | |||||||
| Assignment requirement | |||||||
Stipulate according to agreement: Octet 2 (8 hytes 2) is 00000000 o'clock, expression Delay allowed (resource delay assignment); Octet 2 is 00000001 o'clock, expression Immediate and the resources shallnot be de-allocated until the end of the call (Resources allocation and resource could be discharged by base station sub-system up to end of calling immediately).Octet 2 is 00000010 o'clock, expression Immediate and theresources may further be de-allocated by the BSS (Resources allocation and resource can be discharged by base station sub-system in calling procedure immediately).
By foregoing description as can be known, be mutual exclusion according to agreement regulation delay assignment function and descending measuring ability, promptly two functions can only have a function effective, and are inoperative when the delay assignment function as descending measuring ability.
The zone of action of the cluster user terminal of GT800 and GSMR has uncertainty, and often concentrate cross the another one sub-district from a sub-district.
This class user terminal is carrying out the VGCS calling, and base station sub-system is when adopting the delay assignment function that channel resource is managed, can cause user terminal each sub-district of process all remain with group-calling channel, even in the sub-district that has not user terminal using group-calling channel.
In sum, when existing group-calling channel resource management method adopts the delay assignment function that group-calling channel resource is managed in base station sub-system, if group-calling channel resource has been distributed by push-notification-answer in certain sub-district, the user terminal of all monitorings is after leaving this sub-district in this sub-district, for the group-calling channel resource of this cell allocation still keeps, can not discharge automatically, waste system resource, make resource utilization ratio low.
Summary of the invention
The invention provides the management method of group-calling channel resource in a kind of mobile communication system, group-calling channel resource is managed,, realize improving the purpose of resource utilization ratio with conserve system resources by adopting delay assignment function, descending testing process simultaneously.
For achieving the above object, the management method of group-calling channel resource in a kind of mobile communication system provided by the invention comprises:
A, mobile switching centre need carry out the message transmission of descending detection to the relevant base station subsystem with delay assignment group-calling channel resource sub-district;
B, base station sub-system carry out the downlink user terminal of the information detected cells of descending detection according to described needs, and manage according to the group-calling channel resource of testing result to the sub-district.
Described group-calling channel is: the group-calling channel in the voice group call service.
Described step a is specially:
Mobile switching centre need carry out delay assignment group-calling channel resource sub-district the information-bearing of descending detection in the predetermined field of voice group call service assignment request VGCS ASSIGNMENT REQUEST message, transfers to the relevant base station subsystem.
Described predetermined field comprises: assignment demand Assignment Requirement field.
Described assignment demand Assignment Requirement field is set to: 0XX01000.
Described step b is specially:
Base station sub-system is carried out descending detection according to described needs information issues descending detect-message to corresponding district, and when determining not receive corresponding response message, discharges the group-calling channel resource of described sub-district.
Described method also comprises:
Be provided with respectively each sub-district the pre-determined number that issues descending detect-message, issue the predetermined time interval of descending detect-message;
And described step b further comprises:
B1, base station controller carry out descending detection according to described needs information regularly issues descending detect-message to respective cell according to the predetermined time interval of the corresponding district base station by correspondence;
B2, base station controller are issuing the descending detect-message of pre-determined number continuously, and when determining not receive the response message that the base station reports, discharge the group-calling channel resource of described sub-district always.
The response message that described base station reports comprises: find hearer Listener Detect message.
Described method also comprises:
The descending detected parameters of each sub-district is set;
Described descending detected parameters is: forbid descending detection or allow descending detection;
And described step b1 further comprises:
The information that base station controller carries out descending detection according to described needs is determined the sub-district of the descending detection of needs, and the descending detected parameters in this sub-district is when being set to allow descending detection, regularly issues descending detect-message to this sub-district according to the predetermined time interval of this sub-district base station by correspondence.
Described descending detected parameters comprises when being set to forbid descending detection: pre-determined number and/or predetermined time interval are set to 0.
Description by technique scheme can obviously be learnt, mobile switching centre of the present invention is by carrying out the message transmission of descending detection to base station sub-system with delay assignment group-calling channel resource sub-district, make base station sub-system when adopting the delay assignment function that channel resource is managed, can also adopt descending testing process that channel resource is managed, make when adopting the delay assignment function to distribute the sub-district of group-calling channel resource not have the user terminal of monitoring in the group-calling service, for the group-calling channel resource of this cell allocation can access release, saved system resource; The present invention is by carrying out delay assignment group-calling channel resource sub-district the Assignment Requirement field of information-bearing in assignment request message of descending detection, avoided between mobile switching centre and base station sub-system, increasing transmission of messages, made implementation procedure of the present invention simple; Be set to 0XX01000 by Assignment Requirement field, fully guaranteed the compatibility of agreement; By the pre-determined number that issues descending detect-message, predetermined time interval, the descending detected parameters that each sub-district is set, make implementation method of the present invention flexibly and guaranteed that the present invention can accurately, rationally discharge channel resource, thereby realized improving the purpose of resource utilization ratio by technical scheme provided by the invention.
Description of drawings
Fig. 1 is a flow chart of realizing the group-calling channel resource management in the mobile communcations system of the present invention.
Embodiment
If base station sub-system is when adopting the delay assignment function that channel resource is managed, can also trigger descending testing process detects the situation of utilizing of group-calling channel resource, the group-calling channel resource that just can make the sub-district is not when having the downlink user terminal monitoring, automatically discharged, thus the system resource of saving GT800/GSMR.
Therefore, core of the present invention is: mobile switching centre need carry out the message transmission of descending detection to the relevant base station subsystem with delay assignment group-calling channel resource sub-district, base station sub-system is carried out descending detection according to described needs information detects the group-calling channel of corresponding district, and manages according to the group-calling channel resource of testing result to described sub-district.
Based on core concept of the present invention technical scheme provided by the invention is further described below.
When user terminal is initiated the voice group call service calling, mobile switching centre is the message transmission of cell allocation group-calling channel resource during to the relevant base station subsystem needing to adopt the delay assignment function, and mobile switching centre also needs and will adopt delay assignment group-calling channel resource sub-district need carry out the base station sub-system of the message transmission of descending detection to this sub-district correspondence.
The message transmission that mobile switching centre carries out needs descending detection to the method for base station sub-system has multiple, as with this information separately by transmission of messages etc.For avoiding increasing message transmitting procedure between mobile switching centre and base station sub-system, the present invention can transfer to base station sub-system with this information-bearing in VGCS ASSIGNMENTREQUEST message.
Stipulate according to agreement: AssignmentRequirement field Octet 2 is 00000000 o'clock in the VGCS ASSIGNMENT REQUEST message, expression Delay allowed, Octet 2 is 00000001 o'clock, expression Immediate and the resources shall not be de-allocated until the end of thecall, Octet 2 is 00000010 o'clock, expression Immediate and the resources may further bede-allocated by the BSS.
The present invention is the compatibility of abundant guarantee agreement, and this agreement is expanded, and when determining Octet 2 for 0XX01000, the expression sub-district need adopt the delay assignment function to distribute group-calling channel resource, and need carry out descending testing process.
Base station controller is after receiving the next VGCS ASSIGNMENTREQUEST message of mobile switching centre's transmission, when determining that Assignment Requirement field is 0XX01000 in this message, adopt the delay assignment function to distribute group-calling channel to respective cell, and carry out descending testing process, issue descending detect-message as base station controller by the base station and determine whether the sub-district exists the user terminal of monitoring, if there is the user terminal of monitoring, the response message of user terminal can transfer to the base station, the base station is after receiving the response message of user terminal, report Listener Detect (finding the hearer) message to base station controller, base station controller is after receiving this Listener Detect message, the group-calling channel resource that determine to keep this sub-district, and continue to detect the group-calling channel of this sub-district by issuing descending detect-message; If there is not the user terminal of monitoring in detected sub-district, base station controller just can not received the ListenerDetect message that the base station reports, base station controller can be under predetermined condition, determine to discharge the group-calling channel resource of this sub-district, do not receive the Listener Detect message that corresponding base station reports in the interval at the fixed time as base station controller, then determine to discharge the group-calling channel resource of this sub-district, thus conserve system resources.
Be the reasonability of guaranteeing the channel resource of sub-district is discharged, the present invention also in base station controller, be provided with respectively each sub-district the pre-determined number that issues descending detect-message, issue the predetermined time interval of descending detect-message.
When base station controller need carry out descending testing process in definite sub-district, the pre-determined number, the predetermined time interval that are provided with according to this sub-district issued descending detect-message by the base station of this sub-district correspondence to user terminal.
Base station controller is regularly issuing in the descending detect-message process by the base station in pre-determined number according to predetermined time interval, if the base station receives the response message of user terminal to descending detect-message, then report Listener Detect message to the base station, base station controller is after receiving the Listener Detect message that the base station reports, then determine to keep the group-calling channel resource of this sub-district, and the predetermined time interval that is provided with according to this sub-district again regularly issues descending detect-message by the base station in pre-determined number, to judge whether to need to continue to keep the group-calling channel resource of this sub-district once more; Base station controller if do not receive the Listener Detect message that the base station reports always, then determines to discharge the group-calling channel resource of this sub-district after the descending detect-message of finishing pre-determined number according to predetermined time interval by the base station issues process.
For realizing channel resource management of the present invention flexibly, when mobile switching centre determines that descending testing process need be carried out in the sub-district of employing delay assignment function management group-calling channel resource, base station sub-system can be carried out descending testing process to this sub-district according to its concrete condition refusal, the specific implementation process is: the descending detected parameters that each sub-district is set in base station controller, descending detected parameters can be set to allow descending detection, also can be set to forbid descending detection.
Base station controller is after the needs that receive mobile switching centre's transmission carry out the information of descending detection, obtain the descending detected parameters of this sub-district earlier, if the descending detected parameters of this sub-district is set to forbid descending detection, then descending testing process is not carried out in this sub-district, if the descending detected parameters of this sub-district is set to allow descending detection, then issue descending detect-message, carry out descending testing process to this sub-district.
Descending detected parameters is set can be realized by predetermined time interval, pre-determined number that each sub-district is provided with.Predetermined time interval as the sub-district is set at 0 o'clock, represents that this sub-district forbids descending testing process, and the predetermined time interval of sub-district is set at non-0 o'clock, represents that this sub-district allows descending testing process; The pre-determined number of sub-district is set at 0 o'clock for another example, represents that this sub-district forbids descending testing process, and the pre-determined number of sub-district is set at non-0 o'clock, represents that this sub-district allows descending testing process; Perhaps predetermined time interval and pre-determined number all are set at 0 o'clock, represent that this sub-district forbids descending testing process etc.
Be elaborated below in conjunction with 1 pair of technical scheme of the present invention of accompanying drawing.
In Fig. 1, step 100, user terminal is initiated VGCS and is called out, MSC (mobile switching centre) need carry out delay assignment group-calling channel resource sub-district the information such as the 0XX01000 of descending detection, be carried on the Assignment Requirement field in the VGCS ASSIGNMENT REQUEST message, and transfer to the base station controller of this sub-district correspondence.
To step 110, base station controller is the cell allocation group-calling channel resource that exists user terminal to monitor in the group call region according to the 0XX01000 of Assignment Requirement field carrying in the VGCS ASSIGNMENT REQUEST message that receives by the push-notification-answer flow process.
To step 120, base station controller judges whether the sub-district of having distributed group-calling channel resource in the group call region allows descending testing process, whether the predetermined time interval as detected cells is set to 0, if the predetermined time interval of sub-district is set to 0, descending testing process is forbidden in then definite this sub-district, to step 170, the method for channel resource management of the present invention finishes.
In step 120, if determine that the sub-district allows descending testing process, be set to non-0 etc. as the predetermined time interval of sub-district, to step 130, base station controller regularly issues descending detect-message by relevant base station according to the predetermined time interval that is provided with for this sub-district, and the inferior number scale for issuing descending detect-message, for can waiting by register, the inferior process of inferior number scale that issues descending detect-message realizes.
To step 140, base station controller judges whether the Listener Detect message of receiving that the base station reports, if base station controller is received the Listener Detect message that the base station reports, to step 141, restart to be the descending detect-message of issuing of this sub-district note time, as resetting for the inferior register of inferior number scale that issues descending detect-message.To step 130, base station controller regularly issues descending detect-message by the base station according to the predetermined time interval that is provided with for this sub-district again, and the inferior number scale for issuing descending detect-message, to judge whether to need to continue to keep the group-calling channel resource of this sub-district once more.
In step 140, if base station controller does not receive the Listener Detect message that the base station reports, then arrive step 150, judge whether issue descending detect-message note sub-value reaches pre-determined number, if the note sub-value does not reach pre-determined number, to step 130, the predetermined time interval that is provided with according to this sub-district regularly issues descending detect-message by the base station, and it is inferior to continue as the number of times accumulative total note that issues descending detect-message.
In step 150, reach pre-determined number if issue descending detect-message note sub-value, to step 160, base station sub-system discharges the group-calling channel resource of this sub-district, and to step 170, the method for channel resource management of the present invention finishes.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, and present specification wishes that appended claim comprises these distortion and variation.
Claims (10)
1, the management method of group-calling channel resource in a kind of mobile communication system is characterized in that, comprising:
A, mobile switching centre need carry out the message transmission of descending detection to the relevant base station subsystem with delay assignment group-calling channel resource sub-district;
B, base station sub-system carry out the downlink user terminal of the information detected cells of descending detection according to described needs, and manage according to the group-calling channel resource of testing result to the sub-district.
2, the management method of group-calling channel resource in a kind of mobile communication system as claimed in claim 1 is characterized in that described group-calling channel is: the group-calling channel in the voice group call service.
3, the management method of group-calling channel resource in a kind of mobile communication system as claimed in claim 2 is characterized in that described step a is specially:
Mobile switching centre need carry out delay assignment group-calling channel resource sub-district the information-bearing of descending detection in the predetermined field of voice group call service assignment request VGCS ASSIGNMENT REQUEST message, transfers to the relevant base station subsystem.
4, the management method of group-calling channel resource in a kind of mobile communication system as claimed in claim 3 is characterized in that described predetermined field comprises: assignment demand Assignment Requirement field.
5, the management method of group-calling channel resource in a kind of mobile communication system as claimed in claim 4 is characterized in that, described assignment demand Assignment Requirement field is set to: 0XX01000.
6, as the management method of group-calling channel resource in the described a kind of mobile communication system of arbitrary claim in the claim 1 to 5, it is characterized in that described step b is specially:
Base station sub-system is carried out descending detection according to described needs information issues descending detect-message to corresponding district, and when determining not receive corresponding response message, discharges the group-calling channel resource of described sub-district.
7, the management method of group-calling channel resource in a kind of mobile communication system as claimed in claim 6 is characterized in that described method also comprises:
Be provided with respectively each sub-district the pre-determined number that issues descending detect-message, issue the predetermined time interval of descending detect-message;
And described step b further comprises:
B1, base station controller carry out descending detection according to described needs information regularly issues descending detect-message to respective cell according to the predetermined time interval of the corresponding district base station by correspondence;
B2, base station controller are issuing the descending detect-message of pre-determined number continuously, and when determining not receive the response message that the base station reports, discharge the group-calling channel resource of described sub-district always.
8, the management method of group-calling channel resource in a kind of mobile communication system as claimed in claim 7 is characterized in that the response message that described base station reports comprises: find hearer Listener Detect message.
9, the management method of group-calling channel resource in a kind of mobile communication system as claimed in claim 7 is characterized in that described method also comprises:
The descending detected parameters of each sub-district is set;
Described descending detected parameters is: forbid descending detection or allow descending detection;
And described step b1 further comprises:
The information that base station controller carries out descending detection according to described needs is determined the sub-district of the descending detection of needs, and the descending detected parameters in this sub-district is when being set to allow descending detection, regularly issues descending detect-message to this sub-district according to the predetermined time interval of this sub-district base station by correspondence.
10, the management method of group-calling channel resource in a kind of mobile communication system as claimed in claim 9 is characterized in that, described descending detected parameters comprises when being set to forbid descending detection: pre-determined number and/or predetermined time interval are set to 0.
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| CNB2004101029592A CN100433898C (en) | 2004-12-31 | 2004-12-31 | Group call channel resource managing method in mobile communication system |
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| CNB2004101029592A CN100433898C (en) | 2004-12-31 | 2004-12-31 | Group call channel resource managing method in mobile communication system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101111009B (en) * | 2006-07-21 | 2010-08-18 | 华为技术有限公司 | Method for timely releasing spare signal channel resource and group calling system thereof |
| WO2010111843A1 (en) * | 2009-04-03 | 2010-10-07 | 华为技术有限公司 | Method, system and mobile switch center for legal listening |
| CN101193407B (en) * | 2006-11-23 | 2012-07-11 | 华为技术有限公司 | Group resource maintenance method and device and group maintenance information receiving device |
| CN104581951A (en) * | 2013-10-17 | 2015-04-29 | 重庆重邮信科通信技术有限公司 | Method for distributing radio resources for mobile trunking communication broadcasting carrying |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6219548B1 (en) * | 1998-12-22 | 2001-04-17 | Ericsson Inc | Support for transfer of neighboring cell information between MSC areas for VGCS/VBS calls |
| US6862273B2 (en) * | 2001-01-10 | 2005-03-01 | Motorola, Inc. | Method and apparatus for providing dispatch scan in a CDMA communication system |
-
2004
- 2004-12-31 CN CNB2004101029592A patent/CN100433898C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101111009B (en) * | 2006-07-21 | 2010-08-18 | 华为技术有限公司 | Method for timely releasing spare signal channel resource and group calling system thereof |
| CN101193407B (en) * | 2006-11-23 | 2012-07-11 | 华为技术有限公司 | Group resource maintenance method and device and group maintenance information receiving device |
| WO2010111843A1 (en) * | 2009-04-03 | 2010-10-07 | 华为技术有限公司 | Method, system and mobile switch center for legal listening |
| CN104581951A (en) * | 2013-10-17 | 2015-04-29 | 重庆重邮信科通信技术有限公司 | Method for distributing radio resources for mobile trunking communication broadcasting carrying |
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| Publication number | Publication date |
|---|---|
| CN100433898C (en) | 2008-11-12 |
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