CN105722167A

CN105722167A - Cell switching method, terminal and core network equipment

Info

Publication number: CN105722167A
Application number: CN201610294144.1A
Authority: CN
Inventors: 陈宏�; 尧俊峰
Original assignee: Hytera Communications Corp Ltd
Current assignee: Hytera Communications Corp Ltd
Priority date: 2016-05-05
Filing date: 2016-05-05
Publication date: 2016-06-29
Anticipated expiration: 2036-05-05
Also published as: CN105722167B

Abstract

The embodiment of the invention discloses a cell switching method, a terminal and core network equipment. The cell switching method comprises the following steps: enabling the terminal to join in current calling in a broadband service cell, wherein the terminal registers both in the broadband service cell and a narrowband service cell; acquiring information of a service channel of the current calling in a target narrowband cell by the terminal; and switching the terminal to the target narrowband cell from the wideband service cell to continue the current calling according to the acquired information of the service channel. By adopting the embodiment of the invention, switching between the wideband cell to the narrowband cell can be achieved, and call drop can be avoided.

Description

A kind of cell switching method, terminal and equipment of the core network

Technical field

The present embodiments relate to communication technical field, particularly relate to a kind of cell switching method, terminal and equipment of the core network.

Background technology

In specialty trunking communication field, police Digital Clustering (PoliceDigitalTrunking, PDT) system, TErrestrial TRunked Radio (TerrestrialTrunkedRadio, Tetra) system and P25 (Project25) are the systems of several main flow, and they broadly fall into arrowband group system.The arrowband trunked communication systems such as PDT, Tetra and P25 can provide the user good narrowband speech business, but in data service, there is the shortcoming that transfer rate is low, the needs of the growing broadband services such as image and data cannot be met, for solving this problem, industry generally good narrowband systems adds the wide and narrow strip cluster amalgamation mode of broadband system, broadband system is Long Term Evolution (LongTermEvolution such as, LTE) system, wide and narrow strip cluster amalgamation mode such as: PDT+LTE, Tetra+LTE, P25+LTE etc..

Merge initial stage, core net is built respectively and interconnects by gateway, gateway interconnect the network architecture can as it is shown in figure 1, afterwards core net can progressively be transitioned into the unified fusion stage, the network architecture of unified fusion can be as shown in Figure 2.The terminal type of wide and narrow strip group system support includes narrowband terminal, wide-band terminal and dual-mode terminal.

Existing broadband cluster and arrowband cluster standard all support handoff functionality: for broadband colony terminal, can adopt the handover scheme (such as: LTE switches) that wide-bandwidth standards defines；For arrowband colony terminal, the handover scheme (such as: PDT handover) of arrowband cluster standard definition can be adopted；For dual-mode terminal, switching from broadband cell toward broadband cell, can adopt broadband handover scheme, switch from community, arrowband toward community, arrowband, can adopt arrowband handover scheme, and switch from broadband cell toward community, arrowband, existing standard and technical specification are not directed to.

Summary of the invention

In view of this, a kind of cell switching method, terminal and equipment of the core network are embodiments provided, it is possible to realize from broadband cell toward the switching of community, arrowband, it is to avoid call drop.

First aspect, a kind of cell switching method that the embodiment of the present invention provides, including:

Terminal participates in active calls in broadband service community, and this terminal is all registered in this broadband service community and narrowband service community；

This terminal obtains the information of the Traffic Channel of the active calls in narrowband target community；

This terminal switches to this narrowband target community according to the information of this Traffic Channel from this broadband service community and continues this active calls.

In a kind of possible implementation, the information of the Traffic Channel that this terminal obtains the active calls in this narrowband target community includes: this terminal request equipment of the core network is that this active calls is at this narrowband target community distribution services channel；This terminal obtains the information of this Traffic Channel.

In alternatively possible implementation, this terminal request equipment of the core network is that this active calls is before this narrowband target community distribution services channel, terminal is after broadband service community participates in active calls, the method also includes: this terminal receives the broadcast message that the narrowband core net of this narrowband service community ownership sends, and this broadcast message includes the information of the Traffic Channel of this narrowband target community；This terminal obtains list of traffic channels according to this broadcast message；Whether this list of traffic channels of this terminal judges deposits the information of the Traffic Channel called in this prior；If this list of traffic channels is absent from the information of the Traffic Channel of this active calls, then trigger this terminal request equipment of the core network for this active calls at this narrowband target community distribution services channel.

In alternatively possible implementation, this terminal request equipment of the core network includes at this narrowband target community distribution services channel for this active calls:

This terminal sends community handover request by broadband trunked base station to broadband core networks, this community handover request includes the call identification of this active calls and the wireless position identifier LAI of this narrowband target community, so that this broadband core networks identifies, according to the LAI of this narrowband target community, the narrowband core net that this narrowband target community belongs to, and obtain the information of the Traffic Channel of this active calls in this narrowband target community；

This terminal obtains the information of this Traffic Channel and includes:

This terminal obtains the information of the Traffic Channel of this active calls by this broadband trunked base station from this broadband core networks；And/or,

This terminal arrowband trunked base station corresponding from this narrowband service community obtains the information of the Traffic Channel of this active calls, and the information of the Traffic Channel of this active calls is sent to this arrowband trunked base station by this broadband core networks.

Whether this active calls of this terminal judges is that ownership broadband core networks is exhaled and organized to group；

If this active calls is group exhales and organize ownership broadband core networks, the narrowband core net that then this terminal is belonged to this narrowband target community by the arrowband trunked base station that this narrowband target community is corresponding sends setup requests, this setup requests includes the group mark that this group is exhaled, so that the narrowband core net of this narrowband target community ownership belongs to broadband core networks to this group sends this setup requests, and obtain the information of the Traffic Channel of this active calls in this narrowband target community；

This terminal obtains the information of this Traffic Channel and includes:

This terminal arrowband trunked base station corresponding from this narrowband target community obtains the information of the Traffic Channel of this active calls.

Whether this active calls of this terminal judges is that ownership narrowband core net is exhaled and organized to group；

Exhale and organize ownership narrowband core net if this active calls is group, the narrowband core net that then this terminal is belonged to this narrowband target community by the arrowband trunked base station that this narrowband target community is corresponding sends setup requests, this setup requests includes the group mark that this group is exhaled, so that the narrowband core net of this narrowband target community ownership belongs to narrowband core net to this group sends this setup requests, and obtain the information of the Traffic Channel of this active calls in this narrowband target community；

This terminal obtains the information of this Traffic Channel and includes:

This terminal sends community handover request by broadband trunked base station to unified fusion core net, this community handover request includes the call identification of this active calls and the wireless position identifier LAI of this narrowband target community, so that this unified fusion core net is that this active calls is at this narrowband target community distribution services channel according to the LAI of this narrowband target community and this call identification；

This terminal obtains the information of this Traffic Channel and includes:

This terminal obtains the information of this Traffic Channel from this broadband trunked base station, and the information of this Traffic Channel is sent to this broadband trunked base station by this unified fusion core net；

And/or,

This terminal arrowband trunked base station corresponding from this narrowband service community obtains the information of this Traffic Channel, and the information of this Traffic Channel is sent to this arrowband trunked base station by this unified fusion core net.

Whether this active calls of this terminal judges is that group is exhaled；

Exhale if this active calls is group, then this terminal sends setup requests by the arrowband trunked base station that this narrowband target community is corresponding to this unified fusion core net, this setup requests includes the group mark that this group is exhaled, so that this unified fusion core net is exhaled as this active calls distribution services channel in this narrowband target community by this terminal is incorporated to this group according to this group mark；

This terminal obtains the information of this Traffic Channel and includes:

This terminal arrowband trunked base station corresponding from this narrowband target community obtains the information of the Traffic Channel of this active calls, and this traffic channel information is sent to this arrowband trunked base station by this unified fusion core net.

In alternatively possible implementation, the information of the Traffic Channel that this terminal obtains the active calls in this narrowband target community includes:

This terminal receives the broadcast message that the narrowband core net of this narrowband service community ownership sends, and this broadcast message includes the information of the Traffic Channel of this narrowband target community；

This terminal obtains list of traffic channels according to this broadcast message；

Whether this list of traffic channels of this terminal judges deposits the information of the Traffic Channel called in this prior；

If depositing the information of the Traffic Channel called in this prior in this list of traffic channels, then this terminal obtains the information of the Traffic Channel of this active calls this narrowband target community from the arrowband trunked base station that this narrowband service community is corresponding.

Second aspect, a kind of terminal that the embodiment of the present invention provides, including:

Calling module, for participating in active calls in broadband service community, this terminal is all registered in this broadband service community and narrowband service community；

Acquisition module, for obtaining the information of the Traffic Channel of the active calls in narrowband target community；

Processing module, the information of this Traffic Channel for obtaining according to this acquisition module switches to this narrowband target community from this broadband service community and continues this active calls.

In a kind of possible implementation, this acquisition module includes:

Request unit, being used for asking equipment of the core network is that this active calls is at this narrowband target community distribution services channel；

First acquiring unit, for obtaining the information of this Traffic Channel.

In alternatively possible implementation, this acquisition module also includes:

First receives unit, and the broadcast message that the narrowband core net for receiving this narrowband service community ownership sends, this broadcast message includes the information of the Traffic Channel of this narrowband target community；

Second acquisition unit, obtains list of traffic channels for this broadcast message received according to this reception unit；

First judging unit, for judging the information whether depositing the Traffic Channel called in this prior in this list of traffic channels；

Trigger element, if the information of the Traffic Channel for being absent from this active calls in this list of traffic channels, then triggering request equipment of the core network is that this active calls is at this narrowband target community distribution services channel.

In alternatively possible implementation, this request unit includes:

First processes subelement, for sending community handover request by broadband trunked base station to broadband core networks, this community handover request includes the call identification of this active calls and the wireless position identifier LAI of this narrowband target community, so that this broadband core networks can identify, according to the LAI of this narrowband target community, the narrowband core net that this narrowband target community belongs to, and obtain the information of the Traffic Channel of this active calls in this narrowband target community；

This first acquiring unit includes:

First obtains subelement, for being obtained the information of the Traffic Channel of this active calls from this broadband core networks by this broadband trunked base station；

And/or,

The arrowband trunked base station corresponding from this narrowband service community obtains the information of the Traffic Channel of this active calls, and the information of the Traffic Channel of this active calls is sent to this arrowband trunked base station by this broadband core.

In alternatively possible implementation, this request unit includes:

Second processes subelement, is used for judging whether this active calls is that ownership broadband core networks is exhaled and organized to group；

First sends subelement, if being that ownership broadband core networks is exhaled and organized to group for this active calls, the narrowband core net then belonged to this narrowband target community by the arrowband trunked base station that this narrowband target community is corresponding sends setup requests, this setup requests includes the group mark that this group is exhaled, so that the narrowband core net of this narrowband target community ownership belongs to broadband core networks to this group sends this setup requests, and obtain the information of the Traffic Channel of this active calls in this narrowband target community；

This first acquiring unit includes:

Second obtains subelement, obtains the information of the Traffic Channel of this active calls for the arrowband trunked base station corresponding from this narrowband target community.

In alternatively possible implementation, this request unit includes:

3rd processes subelement, is used for judging whether this active calls is that ownership narrowband core net is exhaled and organized to group；

Second sends subelement, if being that ownership narrowband core net is exhaled and organized to group for this active calls, the narrowband core net then belonged to this narrowband target community by the arrowband trunked base station that this narrowband target community is corresponding sends setup requests, this setup requests includes the group mark that this group is exhaled, exhale so that this terminal is incorporated to this group according to this group mark by the narrowband core net of this narrowband target community ownership, and obtain the information of the Traffic Channel of this active calls in this narrowband target community；

This first acquiring unit includes:

3rd obtains subelement, obtains the information of the Traffic Channel of this active calls for the arrowband trunked base station corresponding from this narrowband target community.

In alternatively possible implementation, this request unit includes:

Fourth process subelement, for sending community handover request by broadband trunked base station to this unified fusion core net, this community handover request includes the call identification of this active calls and the wireless position identifier LAI of this narrowband target community, so that this unified fusion core net is that this active calls is at this narrowband target community distribution services channel according to the LAI of this narrowband target community and this call identification；

This first acquiring unit includes:

4th obtains subelement, and for obtaining the information of this Traffic Channel from this broadband trunked base station, the information of this Traffic Channel is sent to this broadband trunked base station by this unified fusion core net；

And/or,

The arrowband trunked base station corresponding from narrowband service community obtains the information of this Traffic Channel, and the information of this Traffic Channel is sent to this arrowband trunked base station by this unified fusion core net.

In alternatively possible implementation, this request unit includes:

5th processes subelement, is used for judging whether this active calls is that group is exhaled；

3rd sends subelement, if being that group is exhaled for this active calls, then send setup requests by the arrowband trunked base station that this narrowband target community is corresponding to this unified fusion core net, this setup requests includes the group mark that this group is exhaled, so that this unified fusion core net is exhaled as this active calls distribution services channel in this narrowband target community by this terminal is incorporated to this group according to this group mark；

This first acquiring unit includes:

5th obtains subelement, obtains the information of the Traffic Channel of this active calls for the arrowband trunked base station corresponding from this narrowband target community, and the information of the Traffic Channel of this active calls is sent to this arrowband trunked base station by this unified fusion core net.

In alternatively possible implementation, this acquisition module includes:

Second receives unit, and for receiving the broadcast message that this narrowband service community sends, this broadcast message includes the traffic channel information of this narrowband target community；

3rd acquiring unit, generates list of traffic channels for this broadcast message received according to this reception unit；

Second judging unit, for judging the information whether depositing the Traffic Channel called in this prior in this list of traffic channels that this generation unit generates；

Processing unit, if for the information depositing the Traffic Channel called in this prior in this list of traffic channels, then obtaining the information of the Traffic Channel of this active calls this narrowband target community from the arrowband trunked base station that this narrowband service community is corresponding.

The third aspect, the embodiment of the present invention provides a kind of cell switching method, including:

Equipment of the core network receive terminal request be active calls at narrowband target community distribution services channel, this terminal participates in this active calls in broadband service community, and this terminal is all registered in this broadband service community and narrowband service community；

The information of this Traffic Channel is sent to this terminal by this equipment of the core network, so that this terminal switches to this narrowband target community according to the information of this Traffic Channel from this broadband service community continues this active calls.

In a kind of possible implementation, when equipment of the core network is the broadband core networks of this broadband service community ownership, it is that active calls includes at narrowband target community distribution services channel that equipment of the core network receives the request of terminal:

This broadband core networks receives the community handover request that this terminal is sent by broadband trunked base station, and this community handover request includes the call identification of this active calls and the wireless position identifier LAI of narrowband target community；

This broadband core networks identifies, according to this LAI, the narrowband core net that this narrowband target community belongs to；

This broadband core networks sends community handover preparation request to this narrowband core net, and this community handover preparation request comprises this call identification, so that this narrowband core net is this active calls distribution services channel according to this call identification；

This broadband core networks obtains the information of this Traffic Channel by gateway from this narrowband core net；

The information of this Traffic Channel is sent to this terminal and includes by this equipment of the core network:

The information of this Traffic Channel is sent to this terminal by this broadband core networks；

And/or,

The information of this Traffic Channel is sent to the narrowband core net of this narrowband service community ownership by this broadband core networks, so that arrowband trunked base station corresponding to this narrowband service community sends the information of this Traffic Channel to this terminal.

In alternatively possible implementation, when equipment of the core network is unified fusion core net, it is that active calls includes at narrowband target community distribution services channel that equipment of the core network receives the request of terminal:

Unified fusion core net receives the community handover request that this terminal sends, and this community handover request includes the call identification of this active calls and the wireless position identifier LAI of narrowband target community；

This unified fusion core net is that this active calls is at this narrowband target community distribution services channel according to this call identification；

This traffic channel information is sent to this terminal and includes by this equipment of the core network:

The information of this Traffic Channel is sent to the narrowband core net of this narrowband service community ownership by this unified fusion core net, so that arrowband trunked base station corresponding to this narrowband service community sends the information of this Traffic Channel to this terminal.

In alternatively possible implementation, when equipment of the core network is the narrowband core net of this narrowband target community ownership, it is that active calls includes at narrowband target community distribution services channel that equipment of the core network receives the request of terminal:

When this active calls of this terminal judges be group exhale and organize ownership narrowband core net time, this narrowband target community ownership narrowband core net receive this terminal send setup requests, this setup requests includes the call identification that this group is exhaled；

The narrowband core net of this narrowband target community ownership belongs to narrowband core net to this group and sends this setup requests, so that this group ownership narrowband core net is exhaled as this active calls at this narrowband target community distribution services channel by this terminal is incorporated to this group according to this call identification；

The narrowband core net of this narrowband target community ownership receives the information of this Traffic Channel of this group ownership narrowband core net feedback；

The information of this Traffic Channel is sent to this terminal by the narrowband core net of this narrowband target community ownership.

When this active calls of this terminal judges be group exhale and organize ownership broadband core networks time, this narrowband target community ownership narrowband core net receive this terminal send setup requests, this setup requests includes the call identification that this group is exhaled；

The narrowband core net of this narrowband target community ownership belongs to broadband core networks to this group and sends this setup requests, so that this group ownership broadband core networks is exhaled as this active calls at this narrowband target community distribution services channel by this terminal is incorporated to this group according to this call identification；

The narrowband core net of this narrowband target community ownership receives the information of this Traffic Channel of this group ownership broadband core networks feedback；

In alternatively possible implementation, when equipment of the core network is this unified fusion core net, it is that active calls includes at narrowband target community distribution services channel that equipment of the core network receives the request of terminal:

When this active calls of this terminal judges be group exhale time, this unified fusion core net receive this terminal send setup requests, this setup requests includes the call identification that this group is exhaled；

The call identification that this unified fusion core net is exhaled according to this group is exhaled as this active calls at this narrowband target community distribution services channel by this terminal is incorporated to this group；

The information of this Traffic Channel is sent to this terminal by this unified fusion core net.

Fourth aspect, provides a kind of equipment of the core network in the embodiment of the present invention, including:

Distribution module, the request for receiving terminal be active calls at narrowband target community distribution services channel, this terminal participates in this active calls in broadband service community, and this terminal is all registered in this broadband service community and narrowband service community；

Sending module, for being sent to this terminal by the information of this Traffic Channel, so that this terminal switches to this narrowband target community according to the information of this Traffic Channel from this broadband service community continues this active calls.

In a kind of possible implementation, when equipment of the core network is the broadband core networks of this broadband service community ownership, this distribution module includes:

First receives unit, and for the community handover request that this terminal is sent by broadband trunked base station, this community handover request includes this community handover request and includes the call identification of this active calls and the wireless position identifier LAI of this narrowband target community；

Recognition unit, for identifying, according to this LAI, the narrowband core net that this narrowband target community belongs to；

First transmitting element, for sending community handover preparation request to this narrowband core net, this community handover preparation request comprises this call identification, so that this narrowband core net is this active calls distribution services channel according to this call identification；

First acquiring unit, for obtaining the information of this Traffic Channel by gateway from this narrowband core net；

This sending module includes:

Second transmitting element, for being sent to this terminal by the information of this Traffic Channel；

And/or,

The information of this Traffic Channel is sent to the narrowband core net of this narrowband service community ownership, so that arrowband trunked base station corresponding to this narrowband service community sends the information of this Traffic Channel to this terminal.

In alternatively possible implementation, when equipment of the core network is unified fusion core net, this distribution module includes: second receives unit, for receiving the community handover request that this terminal sends, this community handover request includes the call identification of this active calls and the wireless position identifier LAI of this narrowband target community；

Processing unit, being used for according to this call identification is that this active calls is at this narrowband target community distribution services channel；

This sending module includes:

3rd transmitting element, for being sent to the narrowband core net of this narrowband service community ownership, so that arrowband trunked base station corresponding to this narrowband service community sends the information of this Traffic Channel to this terminal by the information of this Traffic Channel.

In alternatively possible implementation, when equipment of the core network is the narrowband core net of this narrowband target community ownership, this distribution module includes:

3rd receive unit, for when this active calls of this terminal judges be group exhale and organize ownership narrowband core net time, receive this terminal send setup requests, this setup requests includes the call identification that this group is exhaled；

4th transmitting element, sends this setup requests for belonging to narrowband core net to this group, so that this group ownership narrowband core net is exhaled as this active calls at this narrowband target community distribution services channel by this terminal is incorporated to this group according to this call identification；

4th receives unit, for receiving the information of this Traffic Channel of this group ownership narrowband core net feedback；

This sending module includes:

5th transmitting element, for being sent to this terminal by the information of this Traffic Channel.

5th receive unit, for when this active calls of this terminal judges be group exhale and organize ownership broadband core networks time, receive this terminal send setup requests, this setup requests includes the call identification that this group is exhaled；

6th transmitting element, sends this setup requests for belonging to broadband core networks to this group, so that this group ownership broadband core networks is exhaled as this active calls at this narrowband target community distribution services channel by this terminal is incorporated to this group according to this call identification；6th receives unit, for receiving the information of this Traffic Channel of this group ownership broadband core networks feedback；

This sending module includes:

7th transmitting element, for being sent to this terminal by the information of this Traffic Channel.

In alternatively possible implementation, when equipment of the core network is this unified fusion core net, this distribution module includes:

7th receives unit, and for receiving the setup requests that this terminal sends, this setup requests includes the call identification that this group is exhaled；

Allocation units, exhale as this active calls at this narrowband target community distribution services channel by this terminal is incorporated to this group for the call identification exhaled according to this group；This sending module includes:

8th transmitting element, for being sent to this terminal by the information of this Traffic Channel.

5th aspect, the embodiment of the present invention provides a kind of terminal, including:

Transceiver, processor and bus；

This transceiver is connected by this bus with this processor；

This processor, has following function: participate in active calls in broadband service community, this terminal is all registered in this broadband service community and narrowband service community；

This transceiver, has following function: the information of the Traffic Channel of the active calls in acquisition narrowband target community；

This processor, has following function: the information of this Traffic Channel obtained according to this acquisition module switches to this narrowband target community from this broadband service community and continues this active calls.

6th aspect, provides a kind of equipment of the core network in the embodiment of the present invention, including:

Transceiver, processor and bus；

This transceiver is connected by this bus with this processor；

This processor, has following function: receive terminal request be active calls at narrowband target community distribution services channel, this terminal participates in this active calls in broadband service community, and this terminal is all registered in this broadband service community and narrowband service community；

This transceiver, has following function: this traffic channel information this processing module got is sent to this terminal, so that this terminal switches to this narrowband target community according to the information of this Traffic Channel from this broadband service community continues this active calls.

As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that

In the embodiment of the present invention, the terminal participating in active calls in broadband service community can obtain the information of the Traffic Channel of the active calls of existence in narrowband target community, information according to the Traffic Channel obtained can switch to narrowband target community from broadband Serving cell and continue active calls, pass through such scheme, make dual-mode terminal move to broadband wireless signal cover bad and arrowband wireless signal cover good region time, narrowband target community can be switched to from broadband Serving cell, continue to keep calling, it is to avoid call drop.

Accompanying drawing explanation

In order to be illustrated more clearly that the technical scheme in the embodiment of the present invention, the accompanying drawing used required in embodiment will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is a structural representation of the network architecture of gateway interconnection；

Fig. 2 is a structural representation of the network architecture of unified fusion；

Fig. 3 is one schematic flow sheet of embodiment of the present invention cell switching method；

Fig. 4 is one Signalling exchange schematic diagram of embodiment of the present invention cell switching method；

Fig. 5 is another Signalling exchange schematic diagram of embodiment of the present invention cell switching method；

Fig. 6 is another Signalling exchange schematic diagram of embodiment of the present invention cell switching method；

Fig. 7 is another Signalling exchange schematic diagram of embodiment of the present invention cell switching method；

Fig. 8 is another Signalling exchange schematic diagram of embodiment of the present invention cell switching method；

Fig. 9 is another Signalling exchange schematic diagram of embodiment of the present invention cell switching method；

Figure 10 is another Signalling exchange schematic diagram of embodiment of the present invention cell switching method；

Figure 11 is one structural representation of embodiment of the present invention terminal；

Figure 12 is another structural representation of embodiment of the present invention terminal；

Figure 13 is one structural representation of embodiment of the present invention equipment of the core network；

Figure 14 is another structural representation of embodiment of the present invention equipment of the core network.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.

The cell switching method that the embodiment of the present invention provides can apply to the network architecture of gateway interconnection, it is also possible to is applied to the network architecture of unified fusion.The terminal being previously mentioned in the embodiment of the present invention is support the dual-mode terminal of broadband system and narrowband systems simultaneously, terminal is in dual standby mode, namely terminal is simultaneously at broadband service community and narrowband service cell registration and at net, and terminal passes through broadband service community and participates in a calling (individual calling or group are exhaled).The cell switching method that the embodiment of the present invention provides so that terminal move to broadband wireless signal cover bad and arrowband wireless signal cover good region time, it is possible to be switched to narrowband target community from broadband Serving cell, continue to keep calling, it is to avoid call drop.The terminal being previously mentioned in the embodiment of the present invention can be transmitter receiver.

First introducing the cell switching method that under the network architecture of gateway interconnection, the embodiment of the present invention provides below, refer to Fig. 3, the cell switching method of the present embodiment includes:

301, terminal participates in active calls in broadband service community, and this terminal is all registered in broadband service community and this narrowband service community.

This terminal initiates active calls in this broadband service community, and this terminal is cluster dual-mode terminal.Namely this terminal can be conversed in broadband service community, it is also possible to converses in narrowband service community.

302, terminal obtains the information of the Traffic Channel of the active calls existed in narrowband target community.

In implementing, terminal can monitor the signal quality (such as can weigh) of broadband cluster system current service cell (i.e. broadband service community) and the signal quality (such as can weigh according to received signal strength indicator RSSI or error rate BER) of group system current service cell, arrowband (i.e. narrowband service community) and adjacent area thereof according to Reference Signal Received Power RSRP or Reference Signal Received Quality RSRQ simultaneously, by default decision algorithm judges currently whether meet switching condition, such as when the signal quality of broadband service community is lower than the first predetermined threshold value, and the signal quality of narrowband service community or its adjacent area is higher than the second predetermined threshold value, then think and meet switching condition, second predetermined threshold value is be more than or equal to the first predetermined threshold value.

Determine meet switching condition and determine that needs switch time, terminal needs to obtain the information of the Traffic Channel of the active calls existed in narrowband target community.

Wherein, the Traffic Channel of the active calls existed in narrowband target community distributes (inherently there is the member belonging to active calls in such as narrowband target community, narrowband target community has participated in active calls) before can being switching；Or the Traffic Channel of active calls existed in narrowband target community distribute in real time when being switching (such as narrowband target community has neither part nor lot in active calls, the narrowband core net of narrowband target community ownership is after the request receiving terminal, control the arrowband trunked base station that narrowband target community is corresponding, distribute a Traffic Channel for active calls in real time in narrowband target community).

The information of the Traffic Channel of the active calls existed in narrowband target community can include the channel number (ChannelNo) of this Traffic Channel, timeslot number (SlotNo), alignment pattern (AlignMode) etc..It addition, the information controlling channel of narrowband target community can also be sent to terminal by the narrowband core net of narrowband target community ownership.

303, terminal switches to this narrowband target community according to the information of this Traffic Channel obtained from this broadband service community and continues this active calls.

If the Traffic Channel of the active calls existed in narrowband target community is distributed before being switching, and in the Neighboring Cell List of narrowband service community, include narrowband target community, then the method for the information that terminal obtains this Traffic Channel is as follows: under the network structure of gateway interconnection, during the information of the Traffic Channel of first membership request's narrowband target community of active calls, arrowband trunked base station corresponding to narrowband target community is controlled by the narrowband core net of narrowband target community ownership, it it is active calls distribution services channel in narrowband target community, after being assigned, the information of this Traffic Channel is fed back to the member of first request, additionally, the information of this Traffic Channel is sent to the arrowband trunked base station that narrowband service community is corresponding by the narrowband core net that the narrowband core net of narrowband target community ownership belongs to also by narrowband service community, when terminal to be switched to above-mentioned narrowband target community and need the information obtaining this Traffic Channel, terminal can pass through the information of the Traffic Channel of the current calling existed in the broadcast acquisition narrowband target community that arrowband trunked base station corresponding to narrowband service community sends；And under the network architecture of unified fusion, during the information of the Traffic Channel of first membership request's narrowband target community of active calls, arrowband trunked base station corresponding to narrowband target community is controlled by unified fusion core net, it it is active calls distribution services channel in narrowband target community, after being assigned, the information of this Traffic Channel is fed back to the member of first request, additionally, the information of this Traffic Channel is also sent to the arrowband trunked base station that narrowband service community is corresponding by unified fusion core net, when terminal to be switched to above-mentioned narrowband target community and need the information obtaining this Traffic Channel, terminal can pass through the information of the Traffic Channel of the current calling existed in the broadcast acquisition narrowband target community that arrowband trunked base station corresponding to narrowband service community sends.

Several embodiments are discussed in detail terminal request core net method for active calls distribution services channel and the information getting Traffic Channel in narrowband target community below.Wherein, the network structure of Fig. 4 to Fig. 8 corresponding gateway interconnection, the network architecture of Fig. 9 to Figure 10 correspondence unified fusion.

Referring initially to Fig. 4, in the present embodiment, distribute for active calls in real time under the control of the narrowband core net that this Traffic Channel is arrowband trunked base station corresponding to narrowband target community to be belonged in narrowband target community, active calls is individual calling, terminal is currently at broadband service community, being intended to switch to narrowband target community and continue active calls, concrete grammar includes:

Terminal, after determining and needing to carry out community switching, sends community handover request by broadband trunked base station to broadband core networks, and community handover request includes the call identification (callID) of active calls, the LAI of narrowband target community；

Broadband core networks inquires calling and called address according to call identification, LAI according to narrowband target community obtains the narrowband core net of narrowband target community ownership, to gateway (Gateway, GW) send SIPREFER message, SIPREFER message is carried calling and called address and the LAI of narrowband target community；

SIPREFER message is converted to PSIPPREPARE signaling by gateway, and the narrowband core net to narrowband target community ownership sends PSIPPREPARE signaling；

The narrowband core net of narrowband target community ownership returns PSIP200OK to gateway, PSIP200OK carries handover number (HandoverNo), after gateway obtains handover number, narrowband core net to narrowband target community ownership sends PSIPINVITE request, PSIPINVITE request comprises calling and called address and handover number, after the narrowband core net of narrowband target community ownership receives PSIPINVITE request, the arrowband trunked base station controlling narrowband target community corresponding is active calls distribution services channel in narrowband target community, then PSIP200OK is sent to gateway, PSIP200OK carries the information of the Traffic Channel distributed for active calls in narrowband target community；

Gateway returns the information comprising the Traffic Channel that there is active calls in narrowband target community in SIP200OK, SIP200OK to broadband core networks, and the narrowband core net that then gateway belongs to narrowband target community sends PSIPACK；

After broadband core networks receives the SIP200OK of the information carrying the Traffic Channel that there is active calls in narrowband target community, send community handoff response by broadband trunked base station to terminal, community handoff response comprises the information of the Traffic Channel that there is active calls in narrowband target community；

Terminal, after receiving community handoff response, switches to narrowband target community from broadband Serving cell, continues active calls.

In said process, the information of the Traffic Channel that there is active calls in narrowband target community eats dishes without rice or wine to be sent to terminal by broadband, in reality, can also eat dishes without rice or wine to be sent to terminal by arrowband by the information that there is the Traffic Channel of active calls in narrowband target community, namely after broadband core networks receives the SIP200OK of the information carrying the Traffic Channel that there is active calls in narrowband target community, SIPNOTIFY can also be sent to gateway, after gateway receives SIPNOTIFY, the arrowband trunked base station that the narrowband core net that belonged to by narrowband service community is corresponding to narrowband service community sends PSIPNOTIFY, after arrowband trunked base station corresponding to narrowband service community receives PSIPNOTIFY, P_BCAST is sent to terminal, wherein, SIPNOTIFY, PSIPNOTIFY and P_BCAST all comprises the information of the Traffic Channel that there is active calls in narrowband target community.It addition, for the reliability increasing communication, it is also possible to eated dishes without rice or wine narrowband target community exists the information of the Traffic Channel of active calls by broadband and arrowband eats dishes without rice or wine to be sent simultaneously to terminal.

Additionally, the Traffic Channel of active calls that method shown in Fig. 4 is also applied in narrowband target community existing is distribution before switching, but do not include the situation of narrowband target community in the Neighboring Cell List of narrowband service community, in this case, after the narrowband core net of narrowband target community ownership receives the PSIPPREPARE Signaling instructions that gateway sends, the PSIP200OK of the information carrying this Traffic Channel is directly returned to gateway, follow-up gateway is without sending PSIPINVITE to the narrowband core net of narrowband target community ownership again, directly feed back SIP200OK to broadband core networks.

Refer to Fig. 5, in the present embodiment, distribute for active calls in real time under the control of the narrowband core net that this Traffic Channel is arrowband trunked base station corresponding to narrowband target community to be belonged in narrowband target community, active calls is that group is exhaled, group ownership broadband core networks, terminal is currently at broadband service community, is intended to switch to narrowband target community and continues active calls, and concrete grammar includes:

Broadband core networks inquires calling and called address according to call identification, LAI according to narrowband target community obtains the narrowband core net of narrowband target community ownership, send SIPREFER message to gateway, SIPREFER message is carried the LAI initiating the mark of terminal of community handover request, calling and called address and narrowband target community；

The narrowband core net that gateway belongs to narrowband target community sends PSIPACK, and then gateway returns the information comprising the Traffic Channel that there is active calls in narrowband target community in SIP200OK, SIP200OK to broadband core networks；

Additionally, the Traffic Channel of active calls that method shown in Fig. 5 is also applied in narrowband target community existing is distribution before switching, but do not include the situation of narrowband target community in the Neighboring Cell List of narrowband service community, in this case, after the narrowband core net of narrowband target community ownership receives the PSIPPREPARE Signaling instructions that gateway sends, the PSIP200OK of the information carrying this Traffic Channel is directly returned to gateway, follow-up gateway is without sending PSIPINVITE to the narrowband core net of narrowband target community ownership again, directly feed back SIP200OK to broadband core networks.

Refer to Fig. 6, in the present embodiment, distribute for active calls in real time under the control of the narrowband core net that this Traffic Channel is arrowband trunked base station corresponding to narrowband target community to be belonged in narrowband target community, active calls is that group is exhaled, group ownership narrowband core net, terminal is currently at broadband service community, is intended to switch to narrowband target community and continues active calls, and concrete grammar includes:

SIPREFER message is converted to PSIPPREPARE signaling by gateway, and the narrowband core net to group ownership sends PSIPPREPARE signaling；

PSIPPREPARE signaling is transmitted to the narrowband core net of narrowband target community ownership by the narrowband core net of group ownership；

The narrowband core net of narrowband target community ownership returns PSIP200OK to the narrowband core net of group ownership, PSIP200OK carries handover number (HandoverNo), after the narrowband core net of group ownership obtains handover number, narrowband core net to narrowband target community ownership sends PSIPINVITE request, PSIPINVITE request comprises calling and called address and handover number, after the narrowband core net of narrowband target community ownership receives PSIPINVITE request, the arrowband trunked base station controlling narrowband target community corresponding is active calls distribution services channel in narrowband target community, then PSIP200OK is sent to the narrowband core net of group ownership, PSIP200OK carries the information of the Traffic Channel distributed for active calls in narrowband target community；

The narrowband core net that the narrowband core net of group ownership belongs to narrowband target community sends PSIPACK, then PSIP200OK is transmitted to gateway；

Gateway returns the information comprising the Traffic Channel that there is active calls in narrowband target community in SIP200OK, SIP200OK to broadband core networks；

In said process, the information of the Traffic Channel that there is active calls in narrowband target community eats dishes without rice or wine to be sent to terminal by broadband, in reality, can also eat dishes without rice or wine to be sent to terminal by arrowband by the information that there is the Traffic Channel of active calls in narrowband target community, namely after the narrowband core net of group ownership receives the PSIP200OK of the information carrying the Traffic Channel that there is active calls in narrowband target community, the arrowband trunked base station that the narrowband core net that can also be belonged to by narrowband service community is corresponding to narrowband service community sends PSIPNOTIFY, after arrowband trunked base station corresponding to narrowband service community receives PSIPNOTIFY, P_BCAST is sent to terminal, wherein, PSIPNOTIFY and P_BCAST all comprises the information of the Traffic Channel that there is active calls in narrowband target community.It addition, for the reliability increasing communication, it is also possible to eated dishes without rice or wine narrowband target community exists the information of the Traffic Channel of active calls by broadband and arrowband eats dishes without rice or wine to be sent simultaneously to terminal.

Additionally, the Traffic Channel of active calls that method shown in Fig. 6 is also applied in narrowband target community existing is distribution before switching, but do not include the situation of narrowband target community in the Neighboring Cell List of narrowband service community, in this case, after the narrowband core net of narrowband target community ownership receives the PSIPPREPARE Signaling instructions that gateway sends, the PSIP200OK of the information carrying this Traffic Channel is directly returned to gateway, the narrowband core net of follow-up group of ownership is without sending PSIPINVITE to the narrowband core net of narrowband target community ownership again, the PSIP200OK of the information of this Traffic Channel is directly carried to gateway feedback.

In several embodiments above, terminal is all by realizing community switching in broadband trunked base station initiation community handover request, in other embodiments of the present invention, exhale if active calls is group, terminal can also directly be initiated setup requests by the arrowband trunked base station corresponding in narrowband target community and realize community switching, specifically see Fig. 7 and Fig. 8.

In Fig. 7, distribute for active calls in real time under the control of the narrowband core net that this Traffic Channel is arrowband trunked base station corresponding to narrowband target community to be belonged in narrowband target community, active calls is that group is exhaled, group ownership broadband core networks, terminal is currently at broadband service community, being intended to switch to narrowband target community and continue active calls, concrete grammar includes:

Terminal is after determining and needing to carry out community switching, the narrowband core net belonged to narrowband target community by the arrowband trunked base station that narrowband target community is corresponding sends setup requests, setup requests includes the above-mentioned group of group mark exhaled, group mark can be group address, additionally, setup requests can also include type of call (namely group is exhaled), the address etc. of terminal；

The narrowband core net of narrowband target community ownership sends PSIPINVITE message to gateway, comprises the address etc. of group mark, terminal in PSIPINVITE message；

Gateway converts PSIPINVITE message to SIP INVITE message, and SIP INVITE message is sent to broadband core networks；

Broadband core networks finds that the group that this group identifies is exhaled and sets up, therefore terminal is incorporated directly into during this group existing exhales as group membership, then send in SIP200OK, SIP200OK to gateway and comprise and calling address that group (MergeGroup) mark and this group are exhaled；

The narrowband core net that gateway belongs to narrowband target community sends and comprises in PSIP200OK, PSIP200OK and calling address that group (MergeGroup) mark and this group are exhaled；

The narrowband core net of narrowband target community ownership sends PSIPACK to gateway after receiving PSIP200OK, after gateway receives PSIPACK, sends SIPACK to broadband core networks；Then the arrowband trunked base station that the narrowband core network control narrowband target community of narrowband target community ownership is corresponding is active calls distribution services channel in narrowband target community, after being assigned, the arrowband trunked base station corresponding by narrowband target community sends call setup response to terminal, comprises the information of the Traffic Channel of the active calls existed in narrowband target community in call setup response；

Terminal, after receiving call setup response, switches to narrowband target community from broadband Serving cell, continues active calls.

Additionally, the Traffic Channel of active calls that method shown in Fig. 7 is also applied in narrowband target community existing is distribution before switching, but do not include the situation of narrowband target community in the Neighboring Cell List of narrowband service community, in this case, the narrowband core net of narrowband target community ownership sends after PSIPACK to gateway, the call setup sending, to terminal, the information carrying this Traffic Channel either directly through the arrowband trunked base station that narrowband target community is corresponding responds, it is not necessary to distribution services channel again.

In Fig. 8, distribute for active calls in real time under the control of the narrowband core net that this Traffic Channel is arrowband trunked base station corresponding to narrowband target community to be belonged in narrowband target community, active calls is that group is exhaled, group ownership narrowband core net, terminal is currently at broadband service community, being intended to switch to narrowband target community and continue active calls, concrete grammar includes:

The narrowband core net of narrowband target community ownership sends PSIPINVITE message to the narrowband core net of group ownership, comprises the address etc. of group mark, terminal in PSIPINVITE message；

The narrowband core net of group ownership finds that the group that this group identifies is exhaled and sets up, therefore terminal is incorporated directly into during this group existing exhales as group membership, then send in PSIP200OK, PSIP200OK to the narrowband core net of narrowband target community ownership and comprise and calling address that group (MergeGroup) mark and this group are exhaled；

After the narrowband core net of narrowband target community ownership receives PSIP200OK, the narrowband core net of Xiang Zuhu ownership sends PSIPACK, then the arrowband trunked base station controlling narrowband target community corresponding is active calls distribution services channel in narrowband target community, after being assigned, the arrowband trunked base station corresponding by narrowband target community sends call setup response to terminal, comprises the information of the Traffic Channel of the active calls existed in narrowband target community in call setup response；

Additionally, the Traffic Channel of active calls that method shown in Fig. 8 is also applied in narrowband target community existing is distribution before switching, but do not include the situation of narrowband target community in the Neighboring Cell List of narrowband service community, in this case, the narrowband core net of narrowband target community ownership sends after PSIPACK to gateway, the call setup sending, to terminal, the information carrying this Traffic Channel either directly through the arrowband trunked base station that narrowband target community is corresponding responds, it is not necessary to distribution services channel again.

Several embodiments describe under the network architecture of gateway interconnection above, when Traffic Channel is distribution in real time, terminal obtains the method for the information of current traffic channel, several embodiments will be introduced under the network architecture of unified fusion below, when Traffic Channel is distribution in real time, terminal obtains the method for the information of current traffic channel, refers to Fig. 9 and Figure 10.

In Fig. 9, this Traffic Channel is that arrowband trunked base station corresponding to this narrowband target community distributes for active calls in real time under the control of unified fusion core net, active calls is individual calling or group is exhaled, terminal is currently at broadband service community, being intended to switch to narrowband target community and continue active calls, concrete grammar includes:

Terminal, after determining and needing to carry out community switching, sends community handover request by broadband trunked base station to unified fusion core net, and community handover request includes the call identification (callID) of active calls, the LAI of narrowband target community；

The arrowband trunked base station that unified fusion core net controls narrowband target community corresponding is active calls distribution services channel in narrowband target community, after being assigned, community handoff response is sent to terminal by broadband trunked base station, community handoff response includes the information that there is the Traffic Channel of active calls in narrowband target community, it addition, community handoff response can also include the information controlling channel of narrowband target community；

In said process, the information of the Traffic Channel that there is active calls in narrowband target community eats dishes without rice or wine to be sent to terminal by broadband, in reality, can also eat dishes without rice or wine to be sent to terminal by arrowband by the information that there is the Traffic Channel of active calls in narrowband target community, namely unified fusion core net can also send, by the arrowband trunked base station that narrowband service community is corresponding, the information comprising the Traffic Channel that there is active calls in narrowband target community in P_BCAST, P_BCAST to terminal.It addition, for the reliability increasing communication, it is also possible to eated dishes without rice or wine narrowband target community exists the information of the Traffic Channel of active calls by broadband and arrowband eats dishes without rice or wine to be sent simultaneously to terminal.

Additionally, the Traffic Channel of active calls that method shown in Fig. 9 is also applied in narrowband target community existing is distribution before switching, but do not include the situation of narrowband target community in the Neighboring Cell List of narrowband service community, in this case, unified fusion core net is after receiving the community handover request that broadband trunked base station sends, the community handoff response of the information carrying this Traffic Channel is sent to terminal, it is not necessary to distribution services channel again either directly through broadband trunked base station.

In Figure 10, this Traffic Channel is that arrowband trunked base station corresponding to narrowband target community distributes for active calls in real time under the control of unified fusion core net, active calls is that group is exhaled, terminal is currently at broadband service community, being intended to switch to narrowband target community and continue active calls, concrete grammar includes:

Terminal is after determining and needing to carry out community switching, the arrowband trunked base station corresponding by narrowband target community sends setup requests (C_RAND) to unified fusion core net, setup requests includes the group mark that group is exhaled, group mark can be group address, additionally, setup requests can also include type of call (namely group is exhaled), the address etc. of terminal；

Unified fusion core net finds that the group that this group identifies is exhaled and sets up, therefore terminal is incorporated directly into during this group existing exhales as group membership, then the arrowband trunked base station controlling narrowband target community corresponding is active calls distribution services channel in narrowband target community, after being assigned, the arrowband trunked base station corresponding by narrowband target community sends call setup response (MT_GRANT) to terminal, call setup response includes the information that there is the Traffic Channel of active calls in narrowband target community, additionally, call setup response can also include the information controlling channel of narrowband target community；

Additionally, the Traffic Channel of active calls that method shown in Figure 10 is also applied in narrowband target community existing is distribution before switching, but do not include the situation of narrowband target community in the Neighboring Cell List of narrowband service community, in this case, unified fusion core net is after receiving the setup requests that broadband trunked base station sends, the call setup sending, to terminal, the information carrying this Traffic Channel either directly through the arrowband trunked base station that narrowband target community is corresponding responds, it is not necessary to distribution services channel again.

Terminal that the embodiment of the present invention provide being described below, refers to Figure 11, the terminal 1100 of the present embodiment includes:

Calling module 1101, for participating in active calls in broadband service community, this terminal is all registered in this broadband service community and narrowband service community；

Acquisition module 1102, for obtaining the information of the Traffic Channel of the active calls in narrowband target community；

Processing module 1103, the information of this Traffic Channel for obtaining according to this acquisition module switches to this narrowband target community from this broadband service community and continues this active calls.

Optionally, this acquisition module 1102 includes:

First acquiring unit, for obtaining the information of this Traffic Channel.

Optionally, this acquisition module 1102 also includes:

Optionally, this request unit includes:

This first acquiring unit includes:

And/or,

Optionally, this request unit includes:

This first acquiring unit includes:

Optionally, this request unit includes:

This first acquiring unit includes:

Optionally, this request unit includes:

This first acquiring unit includes:

And/or,

Optionally, this request unit includes:

This first acquiring unit includes:

Optionally, this acquisition module 1102 includes:

The terminal that the embodiment of the present invention is somebody's turn to do can perform the cell switching method that any one embodiment of the method for Fig. 3 to Figure 10 is somebody's turn to do, and its technology realizes process and technique effect is referred to the detailed description of corresponding method embodiment, repeats no more herein.

Below from the angle of hardware unit, the terminal of above-described embodiment being described, refer to Figure 12, the terminal 1200 of the present embodiment includes:

Transceiver 1201, processor 1202 and bus 1203；

This transceiver 1201 is connected by this bus 1203 with this processor 1202；

Bus 1203 can be Peripheral Component Interconnect standard (peripheralcomponentinterconnect, it is called for short PCI) bus or EISA (extendedindustrystandardarchitecture is called for short EISA) bus etc..This bus can be divided into address bus, data/address bus, control bus etc..For ease of representing, Figure 12 only represents with a thick line, it is not intended that only have a bus or a type of bus.

Processor 1202 can be central processing unit (centralprocessingunit is called for short CPU), the combination of network processing unit (networkprocessor is called for short NP) or CPU and NP.

Processor 1202 can further include hardware chip.Above-mentioned hardware chip can be special IC (application-specificintegratedcircuit, abbreviation ASIC), PLD (programmablelogicdevice is called for short PLD) or its combination.Above-mentioned PLD can be CPLD (complexprogrammablelogicdevice, it is called for short CPLD), field programmable gate array (field-programmablegatearray, it is called for short FPGA), GAL (genericarraylogic is called for short GAL) or its combination in any.

This processor 1202, has following function: participate in active calls in broadband service community, this terminal is all registered in this broadband service community and narrowband service community；

This transceiver 1201, has following function: the information of the Traffic Channel of the active calls in acquisition narrowband target community；

This processor 1202, has following function: the information of this Traffic Channel obtained according to this acquisition module switches to this narrowband target community from this broadband service community and continues this active calls.It addition, the terminal 1200 in the present embodiment can also include memorizer 1204, this memorizer 1204 can include volatile memory (volatilememory), for instance random access memory (random-accessmemory is called for short RAM)；Memorizer can also include nonvolatile memory (non-volatilememory), such as flash memory (flashmemory), hard disk (harddiskdrive is called for short HDD) or solid state hard disc (solid-statedrive is called for short SSD)；Memorizer 1204 can also include the combination of the memorizer of mentioned kind.Memorizer 1204 is used for storing software program and data cached, and transceiver 1201 and memorizer 1204 are communicated to connect by bus 1203 and processor 1202.

In implementing, transceiver 1201 can have two sets, a set of information for obtaining Traffic Channel from broadband trunked base station, a set of information for obtaining Traffic Channel from arrowband trunked base station.

The terminal 1200 of the present embodiment can also carry out other steps of preceding method embodiment, repeats no more herein.

Equipment of the core network that the embodiment of the present invention provide being described below, refers to Figure 13, the equipment of the core network 1300 of the present embodiment includes:

Distribution module 1301, the request for receiving terminal be active calls at narrowband target community distribution services channel, this terminal participates in this active calls in broadband service community, and this terminal is all registered in this broadband service community and narrowband service community；

Sending module 1302, for being sent to this terminal by the information of this Traffic Channel, so that this terminal switches to this narrowband target community according to the information of this Traffic Channel from this broadband service community continues this active calls.

Optionally, when equipment of the core network is the broadband core networks of this broadband service community ownership, this distribution module 1301 includes:

This sending module 1302 includes:

And/or,

Optionally, when equipment of the core network is unified fusion core net, this distribution module 1301 includes: second receives unit, and for receiving the community handover request that this terminal sends, this community handover request includes the call identification of this active calls and the wireless position identifier LAI of this narrowband target community；

This sending module 1302 includes:

Optionally, when equipment of the core network is the narrowband core net of this narrowband target community ownership, this distribution module 1301 includes:

This sending module 1302 includes:

Optionally, when equipment of the core network is this unified fusion core net, this distribution module includes:

Below from the angle of hardware unit, the core net of above-described embodiment being described, refer to Figure 14, the equipment of the core network 1400 of the present embodiment includes:

Transceiver 1401, processor 1402 and bus 1403；

This transceiver 1401 is connected by this bus 1403 with this processor 1402；

Bus 1403 can be Peripheral Component Interconnect standard (peripheralcomponentinterconnect, it is called for short PCI) bus or EISA (extendedindustrystandardarchitecture is called for short EISA) bus etc..This bus can be divided into address bus, data/address bus, control bus etc..For ease of representing, Figure 14 only represents with a thick line, it is not intended that only have a bus or a type of bus.

Processor 1402 can be central processing unit (centralprocessingunit is called for short CPU), the combination of network processing unit (networkprocessor is called for short NP) or CPU and NP.

Processor 1402 can further include hardware chip.Above-mentioned hardware chip can be special IC (application-specificintegratedcircuit, abbreviation ASIC), PLD (programmablelogicdevice is called for short PLD) or its combination.Above-mentioned PLD can be CPLD (complexprogrammablelogicdevice, it is called for short CPLD), field programmable gate array (field-programmablegatearray, it is called for short FPGA), GAL (genericarraylogic is called for short GAL) or its combination in any.

This processor 1402, has following function: receive terminal request be active calls at narrowband target community distribution services channel, this terminal participates in this active calls in broadband service community, and this terminal is all registered in this broadband service community and narrowband service community；

This transceiver 1401, has following function: this traffic channel information this processing module got is sent to this terminal, so that this terminal switches to this narrowband target community according to the information of this Traffic Channel from this broadband service community continues this active calls.

Additionally, core net 1400 in the present embodiment can also include memorizer 1404, this memorizer 1404 can include volatile memory (volatilememory), for instance random access memory (random-accessmemory is called for short RAM)；Memorizer can also include nonvolatile memory (non-volatilememory), such as flash memory (flashmemory), hard disk (harddiskdrive is called for short HDD) or solid state hard disc (solid-statedrive is called for short SSD)；Memorizer 1404 can also include the combination of the memorizer of mentioned kind.Memorizer 1404 is used for storing software program and data cached, and transceiver 1401 and memorizer 1404 are communicated to connect by bus 1403 and processor 1402.

The equipment of the core network 1400 of the present embodiment can also carry out other steps of preceding method embodiment, repeats no more herein.

Additionally it should be noted that, device embodiment described above is merely schematic, wherein this as the unit that separating component illustrates can be or may not be physically separate, the parts shown as unit can be or may not be physical location, namely may be located at a place, or can also be distributed on multiple NE.Some or all of module therein can be selected according to the actual needs to realize the purpose of the present embodiment scheme.It addition, in device embodiment accompanying drawing provided by the invention, the annexation between module represents have communication connection between them, specifically can be implemented as one or more communication bus or holding wire.Those of ordinary skill in the art, when not paying creative work, are namely appreciated that and implement.

Through the above description of the embodiments, those skilled in the art it can be understood that to the present invention can by hardware, for instance analog circuit, digital circuit or special circuit, mode realize.But, in more for the purpose of the present invention situations, software program realizes being embodiment more preferably.Based on such understanding, technical scheme can realize with the form of software product, this computer software product is stored in the storage medium that can read, floppy disk such as computer, flash memory is (English: flashmemory), hard disk, read only memory (ROM, Read-OnlyMemory), random access memory (RAM, or CD etc. RandomAccessMemory), including some instructions with so that a computer equipment (can be personal computer, server, or the network equipment etc.) perform the method that each embodiment of the present invention is somebody's turn to do.

The above; being only the present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; the change that can readily occur in or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with scope of the claims.

Claims

1. a cell switching method, it is characterised in that including:

Terminal participates in active calls in broadband service community, and described terminal is all registered in described broadband service community and narrowband service community；

Described terminal obtains the information of the Traffic Channel of the active calls in narrowband target community；

Described terminal switches to described narrowband target community according to the information of described Traffic Channel from described broadband service community and continues described active calls.

2. method according to claim 1, it is characterised in that the information of the Traffic Channel that described terminal obtains the active calls in described narrowband target community includes:

Described terminal request equipment of the core network is that described active calls is at described narrowband target community distribution services channel；

Described terminal obtains the information of described Traffic Channel.

3. method according to claim 2, it is characterised in that described terminal request equipment of the core network be described active calls before the distribution services channel of described narrowband target community, terminal participates in after active calls in broadband service community, and described method also includes:

Described terminal receives the broadcast message that the narrowband core net of described narrowband service community ownership sends, and described broadcast message includes the information of the Traffic Channel of described narrowband target community；

Described terminal obtains list of traffic channels according to described broadcast message；

Whether list of traffic channels described in described terminal judges exists the information of the Traffic Channel of described active calls；

If being absent from the information of the Traffic Channel of described active calls in described list of traffic channels, then triggering described terminal request equipment of the core network is that described active calls is at described narrowband target community distribution services channel.

4. according to the method in claim 2 or 3, it is characterised in that described terminal request equipment of the core network is that described active calls includes at described narrowband target community distribution services channel:

Described terminal sends community handover request by broadband trunked base station to broadband core networks, described community handover request includes the call identification of described active calls and the wireless position identifier LAI of described narrowband target community, so that described broadband core networks identifies the narrowband core net of described narrowband target community ownership according to the LAI of described narrowband target community, and obtain the information of the Traffic Channel of active calls described in described narrowband target community；

Described terminal obtains the information of described Traffic Channel and includes:

Described terminal obtains the information of the Traffic Channel of described active calls by described broadband trunked base station from described broadband core networks；And/or,

The information of the Traffic Channel of the arrowband trunked base station described active calls of acquisition that described terminal is corresponding from described narrowband service community, the information of the Traffic Channel of described active calls is sent to described arrowband trunked base station by described broadband core networks.

5. according to the method in claim 2 or 3, it is characterised in that described terminal request equipment of the core network is that described active calls includes at described narrowband target community distribution services channel:

Whether active calls described in described terminal judges is that ownership broadband core networks is exhaled and organized to group；

If described active calls is group exhales and organize ownership broadband core networks, the narrowband core net that then described terminal is belonged to described narrowband target community by the arrowband trunked base station that described narrowband target community is corresponding sends setup requests, described setup requests includes the described group of group mark exhaled, so that the narrowband core net of described narrowband target community ownership belongs to broadband core networks to described group sends described setup requests, and obtain the information of the Traffic Channel of active calls described in described narrowband target community；

The information of the Traffic Channel of the arrowband trunked base station described active calls of acquisition that described terminal is corresponding from described narrowband target community.

6. according to the method in claim 2 or 3, it is characterised in that described terminal request equipment of the core network is that described active calls includes at described narrowband target community distribution services channel:

Whether active calls described in described terminal judges is that ownership narrowband core net is exhaled and organized to group；

Exhale and organize ownership narrowband core net if described active calls is group, the narrowband core net that then described terminal is belonged to described narrowband target community by the arrowband trunked base station that described narrowband target community is corresponding sends setup requests, described setup requests includes the described group of group mark exhaled, so that the narrowband core net of described narrowband target community ownership belongs to narrowband core net to described group sends described setup requests, and obtain the information of the Traffic Channel of active calls described in described narrowband target community；

7. according to the method in claim 2 or 3, it is characterised in that described terminal request equipment of the core network is that described active calls includes at described narrowband target community distribution services channel:

Described terminal sends community handover request by broadband trunked base station to unified fusion core net, described community handover request includes the call identification of described active calls and the wireless position identifier LAI of described narrowband target community, so that described unified fusion core net is that described active calls is at described narrowband target community distribution services channel according to LAI and the described call identification of described narrowband target community；

Described terminal obtains the information of described Traffic Channel from described broadband trunked base station, and the information of described Traffic Channel is sent to described broadband trunked base station by described unified fusion core net；

And/or,

The information of the arrowband trunked base station described Traffic Channel of acquisition that described terminal is corresponding from described narrowband service community, the information of described Traffic Channel is sent to described arrowband trunked base station by described unified fusion core net.

8. according to the method in claim 2 or 3, it is characterised in that described terminal request equipment of the core network is that described active calls includes at described narrowband target community distribution services channel:

Whether active calls described in described terminal judges is that group is exhaled；

Exhale if described active calls is group, then described terminal sends setup requests by the arrowband trunked base station that described narrowband target community is corresponding to described unified fusion core net, described setup requests includes the described group of group mark exhaled, so that described unified fusion core net is exhaled as described active calls distribution services channel in described narrowband target community by described terminal is incorporated to described group according to described group of mark；

The information of the Traffic Channel of the arrowband trunked base station described active calls of acquisition that described terminal is corresponding from described narrowband target community, described traffic channel information is sent to described arrowband trunked base station by described unified fusion core net.

9. method according to claim 1, it is characterised in that the information of the Traffic Channel that described terminal obtains the active calls in described narrowband target community includes:

If there is the information of the Traffic Channel of described active calls in described list of traffic channels, then the arrowband trunked base station that described terminal is corresponding from described narrowband service community obtains the information of the Traffic Channel of active calls described in described narrowband target community.

10. a terminal, it is characterised in that including:

Calling module, for participating in active calls in broadband service community, described terminal is all registered in described broadband service community and narrowband service community；

Processing module, the information of the described Traffic Channel for obtaining according to described acquisition module switches to described narrowband target community from described broadband service community and continues described active calls.

11. terminal according to claim 10, it is characterised in that described acquisition module includes:

Request unit, being used for asking equipment of the core network is that described active calls is at described narrowband target community distribution services channel；

First acquiring unit, for obtaining the information of described Traffic Channel.

12. terminal according to claim 11, it is characterised in that described acquisition module also includes:

First receives unit, and the broadcast message that the narrowband core net for receiving described narrowband service community ownership sends, described broadcast message includes the information of the Traffic Channel of described narrowband target community；

Second acquisition unit, obtains list of traffic channels for the described broadcast message received according to described reception unit；

First judging unit, for judging the information that whether there is the Traffic Channel of described active calls in described list of traffic channels；

Trigger element, if the information of the Traffic Channel for being absent from described active calls in described list of traffic channels, then triggering request core net is that described active calls is at described narrowband target community distribution services channel.

13. the terminal according to claim 11 or 12, it is characterised in that described request unit includes:

First processes subelement, for sending community handover request by broadband trunked base station to broadband core networks, described community handover request includes the call identification of described active calls and the wireless position identifier LAI of described narrowband target community, so that described broadband core networks can identify the narrowband core net of described narrowband target community ownership according to the LAI of described narrowband target community, and obtain the information of the Traffic Channel of active calls described in described narrowband target community；

Described first acquiring unit includes:

First obtains subelement, for being obtained the information of the Traffic Channel of described active calls from described broadband core networks by described broadband trunked base station；

And/or,

The arrowband trunked base station corresponding from described narrowband service community obtains the information of the Traffic Channel of described active calls, and the information of the Traffic Channel of described active calls is sent to described arrowband trunked base station by described broadband core.

14. the terminal according to claim 11 or 12, it is characterised in that described request unit includes:

Second processes subelement, is used for judging whether described active calls is that ownership broadband core networks is exhaled and organized to group；

First sends subelement, if being that ownership broadband core networks is exhaled and organized to group for described active calls, the narrowband core net then belonged to described narrowband target community by the arrowband trunked base station that described narrowband target community is corresponding sends setup requests, described setup requests includes the described group of group mark exhaled, so that the narrowband core net of described narrowband target community ownership belongs to broadband core networks to described group sends described setup requests, and obtain the information of the Traffic Channel of active calls described in described narrowband target community；

Described first acquiring unit includes:

Second obtains subelement, obtains the information of the Traffic Channel of described active calls for the arrowband trunked base station corresponding from described narrowband target community.

15. the terminal according to claim 11 or 12, it is characterised in that described request unit includes:

3rd processes subelement, is used for judging whether described active calls is that ownership narrowband core net is exhaled and organized to group；

Second sends subelement, if being that ownership narrowband core net is exhaled and organized to group for described active calls, the narrowband core net then belonged to described narrowband target community by the arrowband trunked base station that described narrowband target community is corresponding sends setup requests, described setup requests includes the described group of group mark exhaled, exhale so that described terminal is incorporated to described group according to described group of mark by the narrowband core net of described narrowband target community ownership, and obtain the information of the Traffic Channel of active calls described in described narrowband target community；

Described first acquiring unit includes:

3rd obtains subelement, obtains the information of the Traffic Channel of described active calls for the arrowband trunked base station corresponding from described narrowband target community.

16. the terminal according to claim 11 or 12, it is characterised in that described request unit includes:

Fourth process subelement, for sending community handover request by broadband trunked base station to described unified fusion core net, described community handover request includes the call identification of described active calls and the wireless position identifier LAI of described narrowband target community, so that described unified fusion core net is that described active calls is at described narrowband target community distribution services channel according to LAI and the described call identification of described narrowband target community；

Described first acquiring unit includes:

4th obtains subelement, and for obtaining the information of described Traffic Channel from described broadband trunked base station, the information of described Traffic Channel is sent to described broadband trunked base station by described unified fusion core net；

And/or,

The arrowband trunked base station corresponding from narrowband service community obtains the information of described Traffic Channel, and the information of described Traffic Channel is sent to described arrowband trunked base station by described unified fusion core net.

17. the terminal according to claim 11 or 12, it is characterised in that described request unit includes:

5th processes subelement, is used for judging whether described active calls is that group is exhaled；

3rd sends subelement, if being that group is exhaled for described active calls, then send setup requests by the arrowband trunked base station that described narrowband target community is corresponding to described unified fusion core net, described setup requests includes the described group of group mark exhaled, so that described unified fusion core net is exhaled as described active calls distribution services channel in described narrowband target community by described terminal is incorporated to described group according to described group of mark；

Described first acquiring unit includes:

5th obtains subelement, obtains the information of the Traffic Channel of described active calls for the arrowband trunked base station corresponding from described narrowband target community, and the information of the Traffic Channel of described active calls is sent to described arrowband trunked base station by described unified fusion core net.

18. a cell switching method, it is characterised in that including:

It is active calls at narrowband target community distribution services channel that equipment of the core network receives the request of terminal, and described terminal participates in described active calls in broadband service community, and described terminal is all registered in described broadband service community and narrowband service community；

The information of described Traffic Channel is sent to described terminal by described equipment of the core network, so that described terminal switches to described narrowband target community according to the information of described Traffic Channel from described broadband service community continues described active calls.

19. method according to claim 18, it is characterised in that when equipment of the core network is the broadband core networks of described broadband service community ownership, it is that active calls includes at narrowband target community distribution services channel that equipment of the core network receives the request of terminal:

Described broadband core networks receives the community handover request that described terminal is sent by broadband trunked base station, and described community handover request includes the call identification of described active calls and the wireless position identifier LAI of narrowband target community；

Described broadband core networks identifies the narrowband core net of described narrowband target community ownership according to described LAI；

Described broadband core networks sends community handover preparation request to described narrowband core net, and described community handover preparation request comprises described call identification, so that described narrowband core net is described active calls distribution services channel according to described call identification；

Described broadband core networks obtains the information of described Traffic Channel by gateway from described narrowband core net；

The information of described Traffic Channel is sent to described terminal and includes by described equipment of the core network:

The information of described Traffic Channel is sent to described terminal by described broadband core networks；

And/or,

The information of described Traffic Channel is sent to the narrowband core net of described narrowband service community ownership by described broadband core networks, so that arrowband trunked base station corresponding to described narrowband service community sends the information of described Traffic Channel to described terminal.

20. method according to claim 18, it is characterised in that when equipment of the core network is unified fusion core net, it is that active calls includes at narrowband target community distribution services channel that equipment of the core network receives the request of terminal:

Unified fusion core net receives the community handover request that described terminal sends, and described community handover request includes the call identification of described active calls and the wireless position identifier LAI of narrowband target community；

Described unified fusion core net is that described active calls is at described narrowband target community distribution services channel according to described call identification；

Described traffic channel information is sent to described terminal and includes by described equipment of the core network:

The information of described Traffic Channel is sent to the narrowband core net of described narrowband service community ownership by described unified fusion core net, so that arrowband trunked base station corresponding to described narrowband service community sends the information of described Traffic Channel to described terminal.

21. method according to claim 18, it is characterised in that when equipment of the core network is the narrowband core net of described narrowband target community ownership, it is that active calls includes at narrowband target community distribution services channel that equipment of the core network receives the request of terminal:

When active calls described in described terminal judges be group exhale and organize ownership narrowband core net time, described narrowband target community ownership narrowband core net receive described terminal send setup requests, described setup requests includes the described group of call identification exhaled；

The narrowband core net of described narrowband target community ownership belongs to narrowband core net to described group and sends described setup requests, so that described group of ownership narrowband core net is exhaled as described active calls at described narrowband target community distribution services channel by described terminal is incorporated to described group according to described call identification；

The narrowband core net of described narrowband target community ownership receives the information of the described Traffic Channel of described group of ownership narrowband core net feedback；

The information of described Traffic Channel is sent to described terminal by the narrowband core net of described narrowband target community ownership.

22. method according to claim 18, it is characterised in that when equipment of the core network is the narrowband core net of described narrowband target community ownership, it is that active calls includes at narrowband target community distribution services channel that equipment of the core network receives the request of terminal:

When active calls described in described terminal judges be group exhale and organize ownership broadband core networks time, described narrowband target community ownership narrowband core net receive described terminal send setup requests, described setup requests includes the described group of call identification exhaled；

The narrowband core net of described narrowband target community ownership belongs to broadband core networks to described group and sends described setup requests, so that described group of ownership broadband core networks is exhaled as described active calls at described narrowband target community distribution services channel by described terminal is incorporated to described group according to described call identification；

The narrowband core net of described narrowband target community ownership receives the information of the described Traffic Channel of described group of ownership broadband core networks feedback；

23. method according to claim 18, it is characterised in that when equipment of the core network is described unified fusion core net, it is that active calls includes at narrowband target community distribution services channel that equipment of the core network receives the request of terminal:

When active calls described in described terminal judges be group exhale time, described unified fusion core net receive described terminal send setup requests, described setup requests includes the described group of call identification exhaled；

Described unified fusion core net is exhaled as described active calls at described narrowband target community distribution services channel by described terminal is incorporated to described group according to the described group of call identification exhaled；

The information of described Traffic Channel is sent to described terminal by described unified fusion core net.

24. an equipment of the core network, it is characterised in that including:

Distribution module, the request for receiving terminal be active calls at narrowband target community distribution services channel, described terminal participates in described active calls in broadband service community, and described terminal is all registered in described broadband service community and narrowband service community；

Sending module, for being sent to described terminal by the information of described Traffic Channel, so that described terminal switches to described narrowband target community according to the information of described Traffic Channel from described broadband service community continues described active calls.

25. equipment of the core network according to claim 24, it is characterised in that when equipment of the core network is the broadband core networks of described broadband service community ownership, described distribution module includes:

First receives unit, for the community handover request that described terminal is sent by broadband trunked base station, described community handover request includes described community handover request and includes the call identification of described active calls and the wireless position identifier LAI of described narrowband target community；

Recognition unit, for identifying the narrowband core net of described narrowband target community ownership according to described LAI；

First transmitting element, for sending community handover preparation request to described narrowband core net, described community handover preparation request comprises described call identification, so that described narrowband core net is described active calls distribution services channel according to described call identification；

First acquiring unit, for obtaining the information of described Traffic Channel by gateway from described narrowband core net；

Described sending module includes:

Second transmitting element, for being sent to described terminal by the information of described Traffic Channel；

And/or,

The information of described Traffic Channel is sent to the narrowband core net of described narrowband service community ownership, so that arrowband trunked base station corresponding to described narrowband service community sends the information of described Traffic Channel to described terminal.

26. equipment of the core network according to claim 24, it is characterised in that when equipment of the core network is unified fusion core net, described distribution module includes:

Second receives unit, and for receiving the community handover request that described terminal sends, described community handover request includes the call identification of described active calls and the wireless position identifier LAI of described narrowband target community；

Processing unit, being used for according to described call identification is that described active calls is at described narrowband target community distribution services channel；

Described sending module includes:

3rd transmitting element, for being sent to the narrowband core net of described narrowband service community ownership, so that arrowband trunked base station corresponding to described narrowband service community sends the information of described Traffic Channel to described terminal by the information of described Traffic Channel.

27. equipment of the core network according to claim 24, it is characterised in that when equipment of the core network is the narrowband core net of described narrowband target community ownership, described distribution module includes:

3rd receive unit, for when active calls described in described terminal judges be group exhale and organize ownership narrowband core net time, receive described terminal send setup requests, described setup requests includes the described group of call identification exhaled；

4th transmitting element, described setup requests is sent, so that described group of ownership narrowband core net is exhaled as described active calls at described narrowband target community distribution services channel by described terminal is incorporated to described group according to described call identification for belonging to narrowband core net to described group；

4th receives unit, for receiving the information of the described Traffic Channel of described group of ownership narrowband core net feedback；

Described sending module includes:

5th transmitting element, for being sent to described terminal by the information of described Traffic Channel.

28. equipment of the core network according to claim 24, it is characterised in that when equipment of the core network is the narrowband core net of described narrowband target community ownership, described distribution module includes:

5th receive unit, for when active calls described in described terminal judges be group exhale and organize ownership broadband core networks time, receive described terminal send setup requests, described setup requests includes the described group of call identification exhaled；

6th transmitting element, described setup requests is sent, so that described group of ownership broadband core networks is exhaled as described active calls at described narrowband target community distribution services channel by described terminal is incorporated to described group according to described call identification for belonging to broadband core networks to described group；6th receives unit, for receiving the information of the described Traffic Channel of described group of ownership broadband core networks feedback；

Described sending module includes:

7th transmitting element, for being sent to described terminal by the information of described Traffic Channel.

29. equipment of the core network according to claim 24, it is characterised in that when equipment of the core network is described unified fusion core net, described distribution module includes:

7th receives unit, and for receiving the setup requests that described terminal sends, described setup requests includes the described group of call identification exhaled；

Allocation units, for exhaling as described active calls at described narrowband target community distribution services channel by described terminal is incorporated to described group according to the described group of call identification exhaled；Described sending module includes:

8th transmitting element, for being sent to described terminal by the information of described Traffic Channel.

30. a terminal, it is characterised in that including:

Transceiver, processor and bus；

Described transceiver is connected by described bus with described processor；

Described processor, has following function: participate in active calls in broadband service community, described terminal is all registered in described broadband service community and narrowband service community；

Described transceiver, has following function: the information of the Traffic Channel of the active calls in acquisition narrowband target community；

Described processor, has following function: the information of the described Traffic Channel obtained according to described acquisition module switches to described narrowband target community and continues described active calls from described broadband service community.

31. an equipment of the core network, it is characterised in that including:

Transceiver, processor and bus；

Described transceiver is connected by described bus with described processor；

Described processor, there is following function: the request receiving terminal is that active calls is at narrowband target community distribution services channel, described terminal participates in described active calls in broadband service community, and described terminal is all registered in described broadband service community and narrowband service community；

Described transceiver, there is following function: the described traffic channel information described processing module got is sent to described terminal, so that described terminal switches to described narrowband target community according to the information of described Traffic Channel from described broadband service community continues described active calls.