CN1767669A - Method for realizing group service based on GSM public network - Google Patents
Method for realizing group service based on GSM public network Download PDFInfo
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- CN1767669A CN1767669A CN 200410086154 CN200410086154A CN1767669A CN 1767669 A CN1767669 A CN 1767669A CN 200410086154 CN200410086154 CN 200410086154 CN 200410086154 A CN200410086154 A CN 200410086154A CN 1767669 A CN1767669 A CN 1767669A
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Abstract
This invention provides a realization method for a cluster service based on a GSM public network including: a cluster mobile terminal determines a local area it stations according to the information loaded in the system information of a cluster area transmitted by a sub-system of a cluster base station via GSM public network band and carries out the cluster service in the area, which enables GSM public network to provide unified cluster service for cluster mobile terminals by the network laminated on it, in which, the cluster network can have the same band and network number with the GSM public network so as to ensure to optimize cluster areas when selecting or reselecting areas, so that the terminal can realize cluster service in the sphere of the covered cluster network and realize GSM public network service outside of the sphere.
Description
Technical field
The present invention relates to the network communications technology field, be specifically related to a kind of clustering service implementation methods based on the GSM public network.
Background technology
Along with the development of wireless communication technique, group customer day by day strengthens the demand of group service.At present, for providing the method for group service, the client mainly contains two kinds.
Method one: provide group service to the public by the public's mobile digital net among the GSM (global system for mobile communications).
Because the group service of the up-to-date agreement regulation of GSM public network is very limited, and, GSM equipment producer is numerous, the protocol version of the GSM public network that each GSM equipment is supported is inconsistent, the very difficult the most basic group service that provides the unified up-to-date agreement of GSM to stipulate for the public by the mode of edition upgrading is so the GSM public network can not satisfy growing cluster service requirement.
Method two: provide group service to the cluster client by the digital colony network among the GT (based on the group digital system of GSM system).
The GT digital colony network designs towards professional group service characteristic based on the GSM technical system, and abundant and powerful clustering functionality is provided.Colony dispatching service specifically comprises: voice group call service, voice broadcast service, functional addressing, position-based route, lag enter, group calling keeps, dynamically marshalling, group state show, group calling merges, comprise callings, careful monitoring, ambience listening, distant open distantly close, the supplementary service of regional selection, Priority Call, pre-occupied priority call, call blocking, control transfer, cipher key remote destroying, open channel calling and telephone type etc.Its group service that provides all outclass the group service that the GSM public network provides in class of business and aspect of performance.But, because the GT digital colony network need use special, different with the GSM public network frequency range, network No.s, not only waste valuable Internet resources, and the application of cluster portable terminal is only limited in the cluster sub-district, limited the scope of application of cluster portable terminal greatly.
Summary of the invention
The objective of the invention is to, a kind of clustering service implementation methods based on the GSM public network is provided, based on the cluster network of GSM technology, make the cluster portable terminal realize group service by the GSM public network by stack on the GSM public network.
For achieving the above object, a kind of clustering service implementation methods based on the GSM public network provided by the invention comprises:
The cluster portable terminal is determined the cluster sub-district that it is resident according to the trunked base station subsystem by loaded information in the system message of at least one cluster sub-district of the channel resource transmission of GSM public network frequency range, and carries out group service in its resident cluster sub-district.
Described method further comprises:
A, trunked base station subsystem, GSM public network base station sub-system are respectively by the Broadcast Control Channel transmission trunking sub-district of GSM public network frequency range, the system message of GSM public network cell;
B, cluster portable terminal are determined its resident cluster sub-district/GSM public network cell according to loaded information in the system message of at least one sub-district of its reception, and carry out corresponding group service/GSM public network service in its resident sub-district.
Described step a comprises:
The cluster cell ID is set;
The corresponding relation of the cell selecting priority of cluster sub-district access barred sign, cluster sub-district access barred permission sign and cluster sub-district is set;
The trunked base station subsystem allows sign to be carried on the predetermined field of the system message of cluster sub-district described cluster cell ID, cluster sub-district access barred sign, cluster sub-district access barred, and passes through the Broadcast Control Channel transmission of GSM public network frequency range;
GSM public network base station sub-system allows sign to be carried in the system message of GSM public network cell sub-district access barred sign, sub-district access barred, and transmits by the Broadcast Control Channel of GSM public network frequency range.
The cell selecting priority of described cluster sub-district comprises: cell selecting priority is normal, cell selecting priority is low, cell selecting priority is forbidden.
Sub-district access barred sign and sub-district access barred allow corresponding district to select priority to be set to forbid in the system message of cluster sub-district;
And the cell selecting priority of described cluster sub-district is higher than the corresponding district of GSM public network cell and selects priority.
The predetermined field of described system message is: the spare field of system message 3 or system message 4.
Described step b further comprises:
The cluster portable terminal is determined all suitable cells according to gsm protocol, and judges in the system message of each suitable cell whether carry the cluster cell ID respectively;
If carry the cluster cell ID in the system message of suitable cell, from this system message, obtain cluster sub-district access barred sign and cluster sub-district access barred and allow sign;
If there is not the bearing cluster cell ID in the system message of suitable cell, from this system message, obtains sub-district access barred sign and sub-district access barred and allow sign;
Determine the priority of each sub-district according to described each sign of from system message, obtaining;
Described cluster portable terminal is determined persistent district according to the priority of described each suitable cell, and resident;
Described cluster portable terminal carries out corresponding group service/GSM public network service at its persistent district as required.
Described step a also comprises:
A1, the corresponding relation that cluster sub-district access barred sign, cluster sub-district access barred allow sign and the sub-district gravity treatment state of cluster sub-district is set;
A2, determine adjacent each other GSM public network cell and, and in Broadcast Control Channel frequency point allocation table, store adjacent cell information based on the cluster sub-district of the group digital system of GSM system.
The sub-district gravity treatment state of described cluster sub-district comprises: gravity treatment state in sub-district is normal, sub-district gravity treatment Status Disable.
Described step a2 comprises:
Allocation cluster adjacent area in the Broadcast Control Channel frequency point allocation table of GSM public network cell;
Configuration GSM public network adjacent area in the Broadcast Control Channel frequency point allocation table of cluster sub-district.
Described step a also comprises:
Cluster cell reselection offset parameter is set in the cluster portable terminal;
And described step b comprises:
The Broadcast Control Channel frequency point allocation table that carries in the system message of cluster portable terminal according to its persistent district is measured the Broadcast Control Channel downstream signal intensity of each adjacent area, and determines the adjacent area of predetermined number according to the Broadcast Control Channel downstream signal intensity of described measurement;
The cluster cell ID that carries in the system message of cluster portable terminal according to described cluster cell reselection offset parameter, corresponding adjacent area calculates and determines the C2 value of each adjacent area of described predetermined number respectively;
When the cluster portable terminal determined that according to the sub-district gravity treatment triggering criterion of the re-selecting cell state of the C2 value of described calculating, cluster sub-district, gsm protocol needs carry out the sub-district gravity treatment, the cluster cell ID that carries in the system message according to described cluster cell reselection offset parameter, corresponding adjacent area was determined the gravity treatment priority of each adjacent area;
Described cluster portable terminal is determined the gravity treatment Target cell according to the gravity treatment priority of each adjacent area, and resident;
Described cluster portable terminal carries out corresponding group service/GSM public network service at its resident gravity treatment Target cell as required.
The step of determining the C2 value of described each adjacent area is specially:
When Penalty time PENALTY_TIME is not equal to 11111:
C2＝C1+TCF×GT_CELL_RESELECT_OFFSET+CELL_RESELECT_OFFSET-TEMPORARY_OFFSET×H(PENALTY_TIME-T)；
When Penalty time PENALTY_TIME equals 11111:
C2＝C1+TCF*GT_CELL_RESELECT_OFFSET-CELL_RESELECT_OFFSET；
Wherein: TCF is the cluster cell ID, and when the adjacent area was the GSM public network cell, TCF was 0, and when the adjacent area was the cluster sub-district, TCF was 1;
GT_CELL_RESELECT_OFFSET is a cluster cell reselection offset parameter;
CELL_RESELECT_OFFSET is a GSM public network cell gravity treatment offset parameter;
TEMPORARY_OFFSET is interim offset parameter;
H (PENALTY_TIME-T) is H (x) function, and T becomes duration of predetermined number adjacent area for corresponding adjacent area, when x＞0, and H (x)=0, when x≤0, H (x)=1.
Described cluster cell reselection offset parameter is greater than maximum in the C2 value of each adjacent area correspondence and cell reselection offset parameter sum.
The cluster cell ID that carries in the system message according to described cluster cell reselection offset parameter, corresponding adjacent area determines that the step of the gravity treatment priority of each adjacent area is specially:
Sort according to from big to small the C2 value that puts in order to each adjacent area correspondence, and determine the gravity treatment priority of each adjacent area according to the ordering of described C2 value.
Description by technique scheme can obviously be learnt, the cluster cell system message that the present invention comes by the channel resource transmission of passing through GSM public network frequency range of setting, the cluster portable terminal of cluster cell system message being distinguished its reception, the system message that the transmission of GSM public network cell comes make cluster network and GSM public network can use identical frequency range, identical network No.; By T_CBQ, the T_CBA in the system message, the cell selecting priority of cluster sub-district and the cell selecting priority of GSM public network are set, make the cluster portable terminal when carrying out cell selecting, preferred cluster sub-district; By cluster cell reselection offset parameter, re-selecting cell computational methods are set in the cluster portable terminal, make the cluster portable terminal when carrying out the sub-district gravity treatment, preferred cluster sub-district; By the CBQ in the system message that the cluster sub-district is set, CBA, make the common mobile terminal can be with the object of cluster sub-district as cell selecting and sub-district gravity treatment; Thereby realized that by technical scheme provided by the invention stack is based on the cluster network of GSM technology on the GSM public network, make the GSM public network provide unified group service for the cluster portable terminal by the cluster network of stack thereon, make the cluster portable terminal in the scope that cluster network covers, realize group service, in the extraneous GSM public network coverage that cluster network covers, realize the GSM public network service, valuable Internet resources have effectively been saved, enrich the function of cluster portable terminal, enlarged the scope of application of cluster portable terminal.
Description of drawings
Fig. 1 is the cell selecting flow chart of cluster portable terminal of the present invention;
Fig. 2 is the cell re-selection procedure figure of cluster portable terminal of the present invention.
Embodiment
Core of the present invention is: the cluster portable terminal is determined the cluster sub-district that it is resident according to the trunked base station subsystem by the system message loaded information of at least one cluster sub-district of the channel resource transmission of GSM public network frequency range, and carries out group service in its resident cluster sub-district.
Based on core concept of the present invention technical scheme provided by the invention is further described below.
In the present invention, whether the portable terminal basis can realize group service is divided into cluster portable terminal and common mobile terminal, common mobile terminal is the various portable terminals that the mobile subscriber uses on the GSM public network, and the cluster portable terminal is for realizing the portable terminal of group service.
Cluster SIM card in the cluster portable terminal is a SIM card of having registered group service, and the main distinction of the common SIM card in cluster SIM card and the common mobile terminal is: comprise a clustering functionality parameter TRUNK_FLAG (cluster identity) in the cluster SIM card.The cluster portable terminal only after this clustering functionality parameter in reading the cluster SIM card, just runs on the cluster mobile terminal state.Owing to do not have the clustering functionality parameter in the common SIM card, so the cluster portable terminal runs on the common mobile terminal state when not reading this clustering functionality parameter.
If placed the cluster SIM card in the common mobile terminal, common mobile terminal is ignored this clustering functionality parameter when reading the cluster SIM card.So no matter what place in common mobile terminal is cluster SIM card or common SIM card, common mobile terminal is merely able to run on the common mobile terminal state, realizes the business that the GSM public network provides.
The present invention at first need increase by three signs, i.e. TCF (cluster cell ID), T_CBA (cluster sub-district access barred sign), T_CBQ (cluster sub-district access barred permission identifier) in the system message 3 of the cluster sub-district of trunked base station subsystem transmission, system message 4.TCF, T_CBA, T_CBQ take 1 bit in system message 3 or the system message 4 respectively.
TCF is used to judge whether this sub-district is the cluster sub-district, is 1 expression cluster sub-district as TCF.
T_CBA, T_CBQ are used to represent the cell selecting priority and the sub-district gravity treatment state of cluster sub-district.T_CBA in the cluster sub-district and T_CBQ corresponding district select priority and sub-district gravity treatment state to be provided with according to network planning demand, as are set to shown in the table 1:
Table 1
| Cluster sub-district access barred allows (T_CBQ) | Cluster sub-district access barred (T_CBA) | Cell selecting priority | Sub-district gravity treatment state |
| 0 | 0 | Normally | Normally |
| 0 | 1 | Forbid | Forbid |
| 1 | 0 | Low | Normally |
| 1 | 1 | Low | Normally |
Being provided with among the system message 3 of GSM public network cell, the CBQ in the system message 4 and the CBA is as shown in table 2:
Table 2
| The sub-district access barred allows (CBQ) | Sub-district access barred (CBA) | Cell selecting priority | Sub-district gravity treatment state |
| 0 | 0 | Normally | Normally |
| 0 | 1 | Forbid | Forbid |
| 1 | 0 | Low | Normally |
| 1 | 1 | Low | Normally |
Cell selecting priority and sub-district gravity treatment state be that the implication stipulated in implication and the gsm system of " normally; forbid; low " etc. is identical in above-mentioned two tables, select priority for just often as certain sub-district corresponding district, represent that this sub-district can be used as the object of cell selecting, certain sub-district corresponding district gravity treatment state is when forbidding, this sub-district can not be as the object of sub-district gravity treatment, needs of optimizing according to cluster network for another example, when certain cluster sub-district forbids that the cluster portable terminal is resident, the system message 3 of this cluster sub-district, T_CBA and T_CBQ in the system message 4 are set to 1,0 can realize that this cluster sub-district forbids that the cluster portable terminal is resident.
It is 1,0 that the system message 3 of cluster sub-district, the CBA in the system message 4 and CBQ can fixedly install.
After the system message 3 of common mobile terminal reception GSM public network cell, the system message 4, extract the relevant parameter CBA and the CBQ of cell selecting priority and sub-district gravity treatment state, former definition according to gsm system makes an explanation to these parameters, and realizes cell selecting and sub-district gravity treatment according to cell selecting, the residence reselecting of the former definition of gsm system.
After the system message 3 of common mobile terminal reception cluster message, the system message 4, ignore TCF, T_CBA, T_CBQ, still only extract CBA and CBQ, because CBA and CBQ are defined as 0,1 all the time in system message 3, system message 4, represent that according to the former definition of gsm system cell selecting priority and sub-district gravity treatment state are for forbidding, thereby guaranteed that common mobile terminal can be with the cluster sub-district as suitable cell, resident suitable cell, can only resident GSM public network cell, accept the business that the GSM public network provides.
Consider the existing capability that common mobile terminal, cluster portable terminal are realized at present, idle bit position in TCF, T_CBA, three signs of T_CBQ utilisation system message 3, the system message 4 is filled with, like this, be equivalent to upwards evolution on the basis of existing gsm protocol, guaranteed the backward compatibility of gsm protocol version, thereby guaranteed that function that existing common mobile terminal and cluster portable terminal have been supported is not subjected to the influence of three signs increasing in the system message.
The present invention also need dispose GSM public network adjacent area and cluster adjacent area, allocation cluster adjacent area and GSM public network adjacent area in the BA1 of each cluster sub-district in the BA1 of each GSM public network cell (Broadcast Control Channel frequency point allocation table).
After having carried out above-mentioned the setting, the cluster portable terminal is determined suitable cell according to the suitable cell decision condition of gsm protocol definition.
The suitable cell decision condition of gsm protocol definition is as follows:
1, this sub-district belongs to the network of choosing.This network comprises the stacking network of GSM of the present invention and cluster network.
2, the cell selecting priority of this sub-district is not " forbidding ".
3, this sub-district is not in forbidden National roaming lane place.
4, the wireless path loss between portable terminal and BTS (base station) is in the thresholding of network settings, satisfies wireless path loss C1＞0 criterion.Wherein the computing formula of C1 is with the definition in the gsm protocol.
Satisfy above-mentioned four decision conditions simultaneously when the sub-district, then this sub-district is a suitable cell.
For all suitable cells that comprise GSM public network cell and cluster sub-district, the cluster portable terminal can be determined the highest suitable cell of priority according to the cell selecting priority of each suitable cell, and the suitable cell that priority is the highest is defined as its persistent district.
The cell selecting priority of GSM sub-district should determine that the cell selecting priority of cluster sub-district should be determined according to T_CBA in system message 3 or the system message 4 and T_CBQ according to CBA in system message 3 or the system message 4 and CBQ.
When the cell selecting priority that the present invention sets the cluster sub-district is normal priority, its priority level is the highest, when the cell selecting priority of cluster sub-district is low priority, its priority level is taken second place, when the cell selecting priority of GSM public network cell is normal priority, its priority level is more taken second place, and when the cell selecting priority of GSM public network cell was low priority, its priority level was minimum.
Stipulate according to gsm protocol, only when the suitable cell of high priority does not exist, the suitable cell that just can select low priority is as its persistent district, the mechanism of this selection persistent district of gsm protocol can guarantee that the cluster portable terminal is when carrying out cell selecting, as long as have the cluster sub-district in the suitable cell, then the cluster portable terminal can choice set group of mean people district be its persistent district, and can not reside at the GSM public network cell.
Select the process of persistent district to describe below in conjunction with 1 pair of above-mentioned cluster portable terminal of accompanying drawing.
In Fig. 1, step 100, the cluster portable terminal carries out the selection of PLMN (Public Land Mobile Nerwork).
To step 110, the cluster portable terminal carries out the suitable cell search according to the suitable cell standard that defines in the gsm protocol, determines all suitable cells of cluster portable terminal.
To step 120, obtain the system message 3 or the system message 4 of all suitable cells of cluster portable terminal, if suitable cell is the sub-district of GSM public network then determines the priority of this sub-district according to the CBA that carries in the message, CBQ, if suitable cell is the cluster sub-district then determines the priority of this sub-district according to the T_CBA that carries in the message, T_CBQ.Select the normal cell of the low cell selecting priority＞GSM public network cell of priority＞cluster sub-district to select the principle of the low cell selecting priority of priority＞GSM public network cell according to the normal cell of cluster sub-district, the priority of each suitable cell is sorted.
To step 130, the cluster portable terminal is chosen the highest suitable cell of priority as its persistent district.
Can obviously find out by the top description process that the cluster portable terminal is carried out cell selecting, in the cluster network coverage, the cluster portable terminal is preferentially accepted the group service that cluster network provides, and outside the cluster network coverage, the resident GSM public network cell of cluster portable terminal meeting is accepted the public network service that the GSM public network provides.
Behind the cluster mobile terminal to reside cell, the cluster portable terminal carries out the sub-district gravity treatment according to the sub-district gravity treatment triggering criterion that defines in the gsm protocol, for guaranteeing that the cluster portable terminal is when cluster network covers, can choice set group of mean people district be its persistent district, the present invention need be provided with cluster cell reselection offset parameter GT_CELL_RESELECTION_OFFSET in the cluster portable terminal.
This cluster cell reselection offset parameter can be arranged in the SIM card of cluster portable terminal, also can be arranged in other storage mediums of cluster portable terminal.
The sub-district gravity treatment triggering criterion of GSM definition is as follows:
1, portable terminal calculates with current area and belongs to the C2 value of sub-district of same lane place above continuous 5 seconds of the C2 value of portable terminal current service cell.
2, portable terminal calculates with current area and does not belong to the C2 value of sub-district of same lane place above continuous 5 seconds of the C2 value of portable terminal current service cell and sub-district gravity treatment lagged value CELL_SELECTION_HYSTERESIS sum.
3, the sub-district gravity treatment state of portable terminal current service cell is " forbidding ".
4, portable terminal monitors downlink failure.
5, continuous 5 seconds of the C1 value of the current service cell of portable terminal is less than 0.
The process of cluster portable terminal sub-district gravity treatment is specially: the cluster portable terminal is behind persistent district, obtain the BA1 of carrying in the system message 3 of its persistent district or the system message 4, measure the BCCH downstream signal intensity of each adjacent area and 6 the strongest adjacent areas of definite BCCH downstream signal intensity according to the neighboring BS information of storing among the BA1.
The cluster portable terminal obtains the system message 3 or the system message 4 of above-mentioned 6 adjacent areas respectively, calculate the C2 value of each adjacent area according to the cluster cell reselection offset parameter GT_CELL_RESELECTION_OFFSET that is provided with in the TCF of carrying in the system message 3 of each adjacent area or the system message 4, the cluster portable terminal respectively at GSM, specifically formula is as follows:
When Penalty time PENALTY_TIME is not equal to 11111:
C2＝C1+TCF×GT_CELL_RESELECT_OFFSET+CELL_RESELECT_OFFSET-TEMPORARY_OFFSET×H(PENALTY_TIME-T)；
When PENALTY TIME equals 11111:
C2＝C1+TCF*GT_CELL_RESELECT_OFFSET-CELL_RESELECT_OFFSET；
Wherein: PENALTY_TIME is a Penalty time, and TCF is the cluster cell ID, and when the adjacent area was the GSM public network cell, TCF was 0, and when the adjacent area was the cluster sub-district, TCF was 1;
GT_CELL_RESELECT_OFFSET is a cluster cell reselection offset parameter;
CELL_RESELECT_OFFSET is a GSM public network cell gravity treatment offset parameter;
TEMPORARY_OFFSET is interim offset parameter;
PENALTY_TIME, CELL_RESELECT_OFFSET, TEMPORARY_OFFSET all can obtain from system message 3 or system message 4.T becomes duration of predetermined number adjacent area for corresponding adjacent area, and H (PENALTY_TIME-T) is H (x) function, and when X＞0, H (x)=0, when X≤0, H (x)=1.
T can realize by timer, as the initial value of setting T is 0, when certain sub-district is moved terminal and is defined as one of 6 the strongest adjacent areas of BCCH downstream signal intensity, then timer that should the sub-district is picked up counting, when this sub-district no longer becomes one of 6 the strongest adjacent areas of BCCH downstream signal intensity, timer that should the sub-district is resetted.
Determine the whether needs sub-district gravity treatment of cluster portable terminal according to the numerical values recited of the C2 of each adjacent area correspondence of aforementioned calculation, C1, down link monitoring result etc. and the sub-district gravity treatment triggering criterion of GSM definition, if do not need the sub-district gravity treatment, then this cell reselection process finishes, sub-district gravity treatment if desired, then that the C2 value of the maximum of aforementioned calculation is corresponding adjacent area is defined as the gravity treatment Target cell, and resident this gravity treatment Target cell.
Because the cluster portable terminal preferably is offset the cluster sub-district according to GT_CELL_RESELECTION_OFFSET, so as long as GT_CELL_RESELECTION_OFFSET is greater than maxmum (C2)+CELL_SELECTION_HYSTERESIS (sub-district reselection hysteresis), just can guarantee: as long as have the cluster sub-district in the adjacent area, the cluster portable terminal can not reselect to the GSM public network cell, promptly when the cluster portable terminal resides in the GSM public network cell, as long as have the cluster sub-district in the adjacent area of six peak signals of cluster mobile terminal test, then the cluster portable terminal can reselect to the cluster sub-district rapidly; When the resident cluster of cluster portable terminal sub-district, as long as have the cluster sub-district in the adjacent area of six peak signals of cluster mobile terminal test, then cluster mobile station can not reselect to the GSM public network cell.
Implementation procedure below in conjunction with 2 pairs of above-mentioned cluster portable terminal re-selecting cells of accompanying drawing describes.
In Fig. 2, step 200 begins to carry out cell reselection process according to the situation that the is provided with cluster portable terminal of real network.
To step 210, the BA1 that the cluster portable terminal obtains carrying in the system message 3 of its persistent district or the system message 4 measures the BCCH downstream signal intensity of all adjacent areas of its persistent district according to the neighboring BS information of storing among the BA1.
To step 220, the cluster portable terminal sorts according to the intensity of the signal BCCH downstream signal intensity to each adjacent area of its measurement.
To step 230, determine 6 sub-districts that signal strength signal intensity is the strongest, and obtain its system message 3 or system message 4 respectively.
To step 240,, utilize the TCF of carrying in cluster cell reselection offset parameter, system message 3 or the system message 4 that C2 is calculated, and the C2 value is sorted according to order from big to small according to the C2 computing formula of describing in the foregoing description.
To step 250, the sub-district gravity treatment state of determining according to TCF and CBA, CBQ, T_CBA, the T_CBQ of carrying in C2 value, system message 3 or the system message 4 of aforementioned calculation etc. utilizes the sub-district reselection criterion that defines in the gsm protocol to judge the whether needs sub-district gravity treatment of this cluster portable terminal, sub-district gravity treatment if desired, then arrive step 260, the cluster portable terminal selects the maximum adjacent area of C2 value as its resident cluster sub-district/GSM public network cell, and resident.To step 200, the cluster portable terminal begins to carry out next time cell reselection process according to the situation that is provided with of real network.
In step 250, if the cluster portable terminal does not need the sub-district gravity treatment, directly arrive step 200, the cluster portable terminal begins to carry out next time cell reselection process according to the situation that is provided with of real network.
By can obviously finding out in the top description process to cluster portable terminal re-selecting cell, in the cluster network coverage, the cluster portable terminal is preferentially accepted the group service that cluster network provides, and outside the cluster network coverage, the resident GSM public network cell of cluster portable terminal meeting is accepted the public network service that the GSM public network provides.
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, wishes that appended claim comprises these distortion and variation.
Claims (14)
1, a kind of clustering service implementation methods based on the GSM public network is characterized in that comprising:
The cluster portable terminal is determined the cluster sub-district that it is resident according to the trunked base station subsystem by loaded information in the system message of at least one cluster sub-district of the channel resource transmission of GSM public network frequency range, and carries out group service in its resident cluster sub-district.
2, a kind of clustering service implementation methods based on the GSM public network as claimed in claim 1 is characterized in that described method further comprises:
A, trunked base station subsystem, GSM public network base station sub-system are respectively by the Broadcast Control Channel transmission trunking sub-district of GSM public network frequency range, the system message of GSM public network cell;
B, cluster portable terminal are determined its resident cluster sub-district/GSM public network cell according to loaded information in the system message of at least one sub-district of its reception, and carry out corresponding group service/GSM public network service in its resident sub-district.
3, a kind of clustering service implementation methods based on the GSM public network as claimed in claim 2 is characterized in that described step a comprises:
The cluster cell ID is set;
The corresponding relation of the cell selecting priority of cluster sub-district access barred sign, cluster sub-district access barred permission sign and cluster sub-district is set;
The trunked base station subsystem allows sign to be carried on the predetermined field of the system message of cluster sub-district described cluster cell ID, cluster sub-district access barred sign, cluster sub-district access barred, and passes through the Broadcast Control Channel transmission of GSM public network frequency range;
GSM public network base station sub-system allows sign to be carried in the system message of GSM public network cell sub-district access barred sign, sub-district access barred, and transmits by the Broadcast Control Channel of GSM public network frequency range.
4, a kind of clustering service implementation methods based on the GSM public network as claimed in claim 3 is characterized in that the cell selecting priority of described cluster sub-district comprises: cell selecting priority is normal, cell selecting priority is low, cell selecting priority is forbidden.
5, a kind of clustering service implementation methods based on the GSM public network as claimed in claim 3 is characterized in that:
Sub-district access barred sign and sub-district access barred allow corresponding district to select priority to be set to forbid in the system message of cluster sub-district;
And the cell selecting priority of described cluster sub-district is higher than the corresponding district of GSM public network cell and selects priority.
6, a kind of clustering service implementation methods based on the GSM public network as claimed in claim 3 is characterized in that the predetermined field of described system message is: the spare field of system message 3 or system message 4.
7, a kind of clustering service implementation methods based on the GSM public network as claimed in claim 3 is characterized in that described step b further comprises:
The cluster portable terminal is determined all suitable cells according to gsm protocol, and judges in the system message of each suitable cell whether carry the cluster cell ID respectively;
If carry the cluster cell ID in the system message of suitable cell, from this system message, obtain cluster sub-district access barred sign and cluster sub-district access barred and allow sign;
If there is not the bearing cluster cell ID in the system message of suitable cell, from this system message, obtains sub-district access barred sign and sub-district access barred and allow sign;
Determine the priority of each sub-district according to described each sign of from system message, obtaining;
Described cluster portable terminal is determined persistent district according to the priority of described each suitable cell, and resident;
Described cluster portable terminal carries out corresponding group service/GSM public network service at its persistent district as required.
8, as the described a kind of clustering service implementation methods of arbitrary claim in the claim 3 to 7, it is characterized in that described step a also comprises based on the GSM public network:
A1, the corresponding relation that cluster sub-district access barred sign, cluster sub-district access barred allow sign and the sub-district gravity treatment state of cluster sub-district is set;
A2, determine adjacent each other GSM public network cell and, and in Broadcast Control Channel frequency point allocation table, store adjacent cell information based on the cluster sub-district of the group digital system of GSM system.
9, a kind of clustering service implementation methods based on the GSM public network as claimed in claim 8 is characterized in that the sub-district gravity treatment state of described cluster sub-district comprises: gravity treatment state in sub-district is normal, sub-district gravity treatment Status Disable.
10, a kind of clustering service implementation methods based on the GSM public network as claimed in claim 8 is characterized in that described step a2 comprises:
Allocation cluster adjacent area in the Broadcast Control Channel frequency point allocation table of GSM public network cell;
Configuration GSM public network adjacent area in the Broadcast Control Channel frequency point allocation table of cluster sub-district.
11, a kind of clustering service implementation methods based on the GSM public network as claimed in claim 8 is characterized in that described step a also comprises:
Cluster cell reselection offset parameter is set in the cluster portable terminal;
And described step b comprises:
The Broadcast Control Channel frequency point allocation table that carries in the system message of cluster portable terminal according to its persistent district is measured the Broadcast Control Channel downstream signal intensity of each adjacent area, and determines the adjacent area of predetermined number according to the Broadcast Control Channel downstream signal intensity of described measurement;
The cluster cell ID that carries in the system message of cluster portable terminal according to described cluster cell reselection offset parameter, corresponding adjacent area calculates and determines the C2 value of each adjacent area of described predetermined number respectively;
When the cluster portable terminal determined that according to the sub-district gravity treatment triggering criterion of the re-selecting cell state of the C2 value of described calculating, cluster sub-district, gsm protocol needs carry out the sub-district gravity treatment, the cluster cell ID that carries in the system message according to described cluster cell reselection offset parameter, corresponding adjacent area was determined the gravity treatment priority of each adjacent area;
Described cluster portable terminal is determined the gravity treatment Target cell according to the gravity treatment priority of each adjacent area, and resident;
Described cluster portable terminal carries out corresponding group service/GSM public network service at its resident gravity treatment Target cell as required.
12, a kind of clustering service implementation methods based on the GSM public network as claimed in claim 11 is characterized in that the step of the C2 value of definite described each adjacent area is specially:
When Penalty time PENALTY_TIME is not equal to 11111:
C2＝C1+TCF×GT_CELL_RESELECT_OFFSET+CELL_RESELECT_OFFSET-TEMPORARY_OFFSET×H(PENALTY_TIME-T)；
When Penalty time PENALTY_TIME equals 11111:
C2＝C1+TCF*GT_CELL_RESELECT_OFFSET-CELL_RESELECT_OFFSET；
Wherein: TCF is the cluster cell ID, and when the adjacent area was the GSM public network cell, TCF was 0, and when the adjacent area was the cluster sub-district, TCF was 1;
GT_CELL_RESELECT_OFFSET is a cluster cell reselection offset parameter;
CELL_RESELECT_OFFSET is a GSM public network cell gravity treatment offset parameter;
TEMPORARY_OFFSET is interim offset parameter;
H (PENALTY_TIME-T) is H (x) function, and T becomes duration of predetermined number adjacent area for corresponding adjacent area, when x＞0, and H (x)=0, when x≤0, H (x)=1.
13, a kind of clustering service implementation methods based on the GSM public network as claimed in claim 12 is characterized in that described cluster cell reselection offset parameter is greater than maximum in the C2 value of each adjacent area correspondence and cell reselection offset parameter sum.
14, a kind of clustering service implementation methods based on the GSM public network as claimed in claim 11 is characterized in that the cluster cell ID that carries in the system message according to described cluster cell reselection offset parameter, corresponding adjacent area determines that the step of the gravity treatment priority of each adjacent area is specially:
Sort according to from big to small the C2 value that puts in order to each adjacent area correspondence, and determine the gravity treatment priority of each adjacent area according to the ordering of described C2 value.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101984711A (en) * | 2010-11-16 | 2011-03-09 | 中兴通讯股份有限公司 | Method for controlling cell reselection and wireless communication terminal |
| CN102036318A (en) * | 2009-09-30 | 2011-04-27 | 中兴通讯股份有限公司 | State switching method and device of terminal |
| CN103974286A (en) * | 2014-04-16 | 2014-08-06 | 北京创毅视讯科技有限公司 | Cell reselection method and device |
| WO2014183349A1 (en) * | 2013-05-15 | 2014-11-20 | 中兴通讯股份有限公司 | Camping processing method and apparatus |
| CN104519521A (en) * | 2013-09-26 | 2015-04-15 | 中兴通讯股份有限公司 | Sending method and apparatus of measuring report |
| CN106535264A (en) * | 2016-12-15 | 2017-03-22 | 海能达通信股份有限公司 | Cell reselection method in cluster system, base station and user equipment |
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1055366C (en) * | 1995-09-28 | 2000-08-09 | 深圳市华为技术有限公司 | Program-controlled exchange based honeycomb concentration system communication method and system |
| US6751468B1 (en) * | 1999-05-26 | 2004-06-15 | Bellsouth Intellectual Property Corporation | Systems and methods for providing push to talk feature for wireless communication systems |
| EP1252750B1 (en) * | 2000-01-31 | 2007-05-16 | Eshagh Isaac Eteminan | Communication via a cellular telecommunication network |
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| CN101984711A (en) * | 2010-11-16 | 2011-03-09 | 中兴通讯股份有限公司 | Method for controlling cell reselection and wireless communication terminal |
| WO2014183349A1 (en) * | 2013-05-15 | 2014-11-20 | 中兴通讯股份有限公司 | Camping processing method and apparatus |
| CN104519521A (en) * | 2013-09-26 | 2015-04-15 | 中兴通讯股份有限公司 | Sending method and apparatus of measuring report |
| CN104519521B (en) * | 2013-09-26 | 2019-06-11 | 中兴通讯股份有限公司 | Method and device for sending measurement report |
| CN103974286A (en) * | 2014-04-16 | 2014-08-06 | 北京创毅视讯科技有限公司 | Cell reselection method and device |
| CN106535264A (en) * | 2016-12-15 | 2017-03-22 | 海能达通信股份有限公司 | Cell reselection method in cluster system, base station and user equipment |
| CN111885513A (en) * | 2020-07-22 | 2020-11-03 | 中国联合网络通信集团有限公司 | Method, device, equipment and storage medium for priority preemption of public network cluster |
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