CN105872999A

CN105872999A - Cell switching method, terminal and core network equipment

Info

Publication number: CN105872999A
Application number: CN201610370440.5A
Authority: CN
Inventors: 陈宏�; 尧俊峰
Original assignee: Hytera Communications Corp Ltd
Current assignee: Hytera Communications Corp Ltd
Priority date: 2016-05-27
Filing date: 2016-05-27
Publication date: 2016-08-17
Anticipated expiration: 2036-05-27
Also published as: CN105872999B

Abstract

The embodiment of the invention discloses a cell switching method and a terminal which are used for realizing switching from a narrowband cell to a broadband cell and avoiding call missing. The method comprises the steps that the terminal participates in a current call in the narrowband service cell, wherein the terminal is registered in both the broadband service cell and the narrowband service cell; the terminal acquires information of wireless resources of the current call in the broadband service cell; the terminal switches from the narrowband service cell to the broadband service cell according to the information of the wireless resource and continues the current call through the wireless resources.

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 with And equipment of the core network.

Background technology

In specialty trunking communication field, police Digital Clustering (Police Digital Trunking, PDT) is System, TErrestrial TRunked Radio (Terrestrial Trunked Radio, Tetra) system and P25 (Project25) Being the system of several main flow, they broadly fall into arrowband group system.The arrowband collection such as PDT, Tetra and P25 Group communication system can provide the user good narrowband speech business, but there is transmission in terms of data service The shortcoming that speed is low, it is impossible to meet the needs of the growing broadband services such as image and data, for solving This problem, industry is generally had an optimistic view of narrowband systems and is added the wide and narrow strip cluster amalgamation mode of broadband system, broadband System such as Long Term Evolution (Long Term Evolution, LTE) system, wide and narrow strip cluster amalgamation mode Such as: PDT+LTE, Tetra+LTE, P25+LTE etc..

In the initial stage merged, core net is built respectively and is interconnected by gateway, the network of gateway interconnection Framework can as it is shown in figure 1, afterwards core net can progressively be transitioned into unified fusion stage, the net of unified fusion Network framework can be as shown in Figure 2.The terminal type of wide and narrow strip group system support includes narrowband terminal, broadband Terminal and dual-mode terminal.

Existing broadband cluster and arrowband cluster standard all support handoff functionality: for broadband colony terminal, The handover scheme (such as: LTE switches) that wide-bandwidth standards defines can be used；For arrowband colony terminal, can Use the handover scheme (such as: PDT handover) of arrowband cluster standard definition；For dual-mode terminal, Switch from broadband cell toward broadband cell, broadband handover scheme can be used, from community, arrowband toward community, arrowband Switching, can use arrowband handover scheme.And switch toward broadband cell from community, arrowband, existing standard and skill Art specification is not directed to.

Summary of the invention

In view of this, embodiments provide a kind of cell switching method and terminal, it is possible to realize from Broadband cell is toward the switching of community, arrowband, it is to avoid call drop.

First aspect, the embodiment of the present invention provides a kind of cell switching method, including: terminal takes in arrowband Business community participates in active calls, and this terminal all has registration in broadband service community and this narrowband service community； This terminal obtains the information of the Radio Resource of this active calls in this broadband service community；This terminal according to The information of this Radio Resource switches to this broadband service community and utilizes this wireless money from this narrowband service community This active calls is continued in source.

In conjunction with the first aspect of the embodiment of the present invention, in the first reality of the first aspect of the embodiment of the present invention In existing mode, this terminal obtains the letter of the Radio Resource of this active calls present in this broadband service community Breath particularly as follows: this terminal request equipment of the core network to be this active calls wireless in the distribution of this broadband service community Resource；This terminal receives this Radio Resource of broadband trunked base station transmission corresponding to this broadband service community Information.

In conjunction with the first implementation of the first aspect of the embodiment of the present invention, in the of the embodiment of the present invention In the second implementation on the one hand, terminal is after narrowband service community participates in active calls, and this is eventually End request equipment of the core network be this active calls before this broadband service distributing wireless resources for cells, the party Method also includes:

Whether this active calls of this terminal judges is that group is exhaled, the most then to receive this broadband service little for this terminal The broadcast message that district sends；

According to this broadcast message, this terminal judges whether this terminal participates in this group and exhale, if it is not, then trigger this end End asks this equipment of the core network to be that this active calls is in this broadband service distributing wireless resources for cells.

In conjunction with the first implementation of first aspect or the second implementation of the embodiment of the present invention, In the third implementation of the first aspect of the embodiment of the present invention, this terminal request equipment of the core network is for being somebody's turn to do Active calls includes in this broadband service distributing wireless resources for cells:

This terminal sends community handover request, this community by this broadband trunked base station to this broadband core networks Handover request includes the number of this terminal, Session Description Protocol (English full name: the Session of this terminal Description Protocol, is called for short: SDP), and the wireless position identifier of this narrowband service community is (English LAI) and the Traffic Channel number of this narrowband service community full name: Location Area Identity, is called for short:, So that the narrowband core net that this broadband core networks belongs to this narrowband service community sends the 3rd community switching Preparation request, the 3rd community handover preparation request includes this number, this SDP, this LAI and this industry Business channel number, and indicate this broadband trunked base station according to this number, this SDP and this call context are for being somebody's turn to do Active calls distributing radio resource, this call context is sent out according to this narrowband core net by this broadband core networks The calling identity sent (English full name: Identity, is called for short: ID) inquiry obtains, this calling ID by This narrowband core net obtains according to this LAI and this Traffic Channel inquiry.

In conjunction with the first implementation of first aspect or the second implementation of the embodiment of the present invention, In 4th kind of implementation of the first aspect of the embodiment of the present invention, this terminal request equipment of the core network is for being somebody's turn to do Active calls includes in this broadband service distributing wireless resources for cells:

This terminal is belonged to this narrowband service community by the arrowband trunked base station that this narrowband service community is corresponding Narrowband core net send community handover request, this community handover request carries number and this end of this terminal The SDP of end, so that this narrowband core net sends the 4th community handover preparation request to this broadband core networks, 4th community handover preparation request carries this number, and this SDP and the calling ID of this active calls, this is exhaled ID is made to inquire about the call context of this active calls for this broadband core networks, this number, this SDP and should Call context indicates this broadband trunked base station to be that this active calls distributes wireless money for this broadband core networks Source.

In conjunction with the first implementation of first aspect or the second implementation of the embodiment of the present invention, In 5th kind of implementation of the first aspect of the embodiment of the present invention, this terminal request equipment of the core network is for being somebody's turn to do Active calls includes in this broadband service distributing wireless resources for cells:

This terminal is belonged to this broadband service community by the broadband trunked base station that this broadband service community is corresponding Broadband core networks send community handover request, so that this broadband core networks is returned to this narrowband service community The narrowband core net belonged to sends the 5th community handover preparation request, and the 5th community handover preparation request includes The number of this terminal, the SDP of this terminal, the LAI of this narrowband service community and this narrowband service community Traffic Channel number, and indicate this broadband trunked base station according to including this number, in this SDP and this calling Hereinafter this active calls distributing radio resource, this call context is by organizing ownership narrowband core net according to exhaling Make ID inquire about and be sent to this broadband core networks, the arrowband that this calling ID is belonged to by this narrowband service community Core net is inquired about according to this LAI and this Traffic Channel number and is sent to this group ownership narrowband core net.

In conjunction with the first implementation of first aspect or the second implementation of the embodiment of the present invention, In 6th kind of implementation of the first aspect of the embodiment of the present invention, this terminal request equipment of the core network is for being somebody's turn to do Active calls includes in this broadband service distributing wireless resources for cells:

The arrowband trunked base station that this terminal is belonged to by this narrowband service community belongs to this narrowband service community Narrowband core net send community handover request, this community handover request includes number and this end of this terminal The SDP of end, so that the calling of this active calls inquired about by the narrowband core net of this narrowband service community ownership ID is also sent to group ownership narrowband core net, and this calling ID deserves for the ownership narrowband core net inquiry of this group The call context of front calling, this number, this SDP and this call context refer to for this broadband core networks Show that this broadband trunked base station is this active calls distributing radio resource.

In conjunction with the first implementation of the first aspect of the embodiment of the present invention, in the of the embodiment of the present invention In the 7th kind of implementation on the one hand, this terminal request equipment of the core network is that this active calls is in this broadband Serving cell distributing radio resource includes:

Whether this active calls of this terminal judges is individual calling；

If this active calls is individual calling, then this terminal is by broadband cluster base corresponding to this broadband service community The broadband core networks to this broadband service community ownership of standing sends community handover request, so that this broadband core The narrowband core net that heart net belongs to this narrowband service community sends the first community handover preparation request, and this is years old One community handover preparation request includes the number of this terminal, the SDP of this terminal, this narrowband service community The Traffic Channel number of LAI and this narrowband service community, and indicate this broadband trunked base station according to this number, This SDP and call context are this active calls distributing radio resource, and this call context is by this arrowband core Heart net is according to this LAI and the inquiry of this Traffic Channel number and is sent to this broadband core networks.

In conjunction with the first implementation of the first aspect of the embodiment of the present invention, in the of the embodiment of the present invention In the 8th kind of implementation on the one hand, this terminal request equipment of the core network is that this active calls is in this broadband Serving cell distributing radio resource includes:

Whether this active calls of this terminal judges is individual calling；

If this active calls is individual calling, then this terminal is by arrowband cluster base corresponding to this narrowband service community The narrowband core net to this narrowband service community ownership of standing sends community handover request, so that this arrowband core Heart net sends the second community handover preparation request to this broadband core networks, this second community handover preparation request Carrying this number, this SDP and the call context of this active calls, this call context information is narrow by this The inquiry of band core net obtains, this number, and this SDP and this call context indicate for this broadband core networks This broadband trunked base station is this active calls distributing radio resource.

In conjunction with the first implementation of the first aspect of the embodiment of the present invention, in the of the embodiment of the present invention In the 9th kind of implementation on the one hand, this terminal request equipment of the core network is that this active calls is in this broadband Serving cell distributing radio resource includes:

This terminal is sent out to this unified fusion core net by the broadband trunked base station that this broadband service community is corresponding Sending community handover request, this community handover request includes the number of this terminal, the SDP of this terminal, and this is narrow LAI with Serving cell and this Traffic Channel number, so that this unified fusion core net is according to this LAI And the call context of this Traffic Channel number this active calls of inquiry, and indicate this broadband trunked base station root According to this number, this SDP and this call context are this active calls distributing radio resource.

In conjunction with the first implementation of the first aspect of the embodiment of the present invention, in the of the embodiment of the present invention In the tenth kind of implementation on the one hand, this terminal request equipment of the core network is that this active calls is in this broadband Serving cell distributing radio resource includes:

This terminal is sent out to this unified fusion core net by the arrowband trunked base station that this narrowband service community is corresponding Sending community handover request, this community handover request includes the number of this terminal, the SDP of this terminal, so that Obtain this unified fusion core net and inquire about the call context of this active calls, and indicate this broadband trunked base station According to this number, this SDP and this call context are this active calls distributing radio resource.

In conjunction with the first aspect of the embodiment of the present invention, at the 11st kind of the first aspect of the embodiment of the present invention In implementation, this terminal obtains the information of the Radio Resource of this active calls in this broadband service community Including:

According to this broadcast message, this terminal judges whether this terminal participates in this group and exhale, the most then this terminal connects Receive the letter of the Radio Resource of this active calls that broadband trunked base station corresponding to this broadband service community sends Breath.

Second aspect, the embodiment of the present invention provides a kind of terminal, and this terminal has and realizes in said method eventually The function that end realizes.This function can be realized by hardware, it is also possible to performs corresponding software by hardware Realize.This hardware or software include one or more module corresponding with above-mentioned functions.

In a kind of possible implementation, this terminal includes:

Calling module, for participating in active calls in narrowband service community, this terminal is in broadband service community And all there is registration this narrowband service community；

Acquisition module, for obtaining this active calls that this calling module in this broadband service community participates in The information of Radio Resource；

Processing module, for the information of this Radio Resource that acquires according to this acquisition module from this arrowband Serving cell switches to this broadband service community and utilizes this Radio Resource to continue this active calls.

In alternatively possible implementation, this terminal includes:

Transceiver, processor and bus；

This transceiver, this processor is connected by this bus；

This transceiver, such as gives an order for execution:

Participate in active calls in narrowband service community, this terminal is little in broadband service community and this narrowband service Qu Junyou registers；Obtain the wireless of this active calls that this calling module in this broadband service community participates in The information of resource；

This processor, such as gives an order for execution:

The information of this Radio Resource acquired according to this acquisition module switches to from this narrowband service community This broadband service community also utilizes this Radio Resource to continue this active calls.

The third aspect, the embodiment of the present invention provides a kind of cell switching method, including: equipment of the core network connects Receive terminal request be active calls in broadband service distributing wireless resources for cells, this terminal is in narrowband service Community participates in this active calls, and this terminal all has registration in this broadband service community and this narrowband service community； The information of this Radio Resource is sent to this terminal by this equipment of the core network, so that this terminal can be according to this The information of Radio Resource switches to this broadband service community from this narrowband service community and continues this active calls.

In conjunction with the third aspect of the embodiment of the present invention, in the first reality of the third aspect of the embodiment of the present invention In existing mode, when this equipment of the core network is the broadband core networks of this broadband service community ownership, core net sets The standby request receiving terminal is that active calls includes in broadband service distributing wireless resources for cells:

This broadband core networks receives the community handover request that this terminal is sent by this broadband trunked base station；

The narrowband core net that this broadband core networks belongs to this narrowband service community sends the first community switching standard Standby request, this first community handover preparation request includes the number of this terminal, the conversation description association of this terminal The business letter of view SDP, the wireless position identifier LAI of this narrowband service community and this narrowband service community Taoist monastic name, so that this narrowband core net inquires about exhaling of this active calls according to this LAI and this Traffic Channel number Call hereafter；

This broadband core networks receives the second community handover preparation request that this narrowband core net sends, and this is second years old Community handover preparation request carries this number, this SDP and this call context；

This broadband core networks indicate this broadband trunked base station according to this number, this SDP and this call context For this active calls distributing radio resource.

In conjunction with the third aspect of the embodiment of the present invention, real at the second of the third aspect of the embodiment of the present invention In existing mode, when this equipment of the core network is the narrowband core net of this narrowband service community ownership, core net sets The standby request receiving terminal is that active calls includes in broadband service distributing wireless resources for cells:

This narrowband core net is received this terminal and is sent by the arrowband trunked base station that this narrowband service community is corresponding Community handover request；

This narrowband core net sends the 3rd community handover preparation request, the 3rd community to this broadband core networks Handover preparation request carries the number of this terminal, the SDP of this terminal and the call context of this active calls, This call context information is obtained, so that this broadband core networks indicates this width by the inquiry of this narrowband core net Band trunked base station is according to this number, and this SDP and this call context are this active calls distributing radio resource.

In conjunction with the third aspect of the embodiment of the present invention, in the third reality of the third aspect of the embodiment of the present invention In existing mode, when this equipment of the core network is unified fusion core net, equipment of the core network receives the request of terminal Include in broadband service distributing wireless resources for cells for active calls:

This unified fusion core net receives this terminal by broadband trunked base station corresponding to this broadband service community The community handover request sent, this community handover request includes the number of this terminal, the SDP of this terminal, The LAI of this narrowband service community and the Traffic Channel number of this narrowband service community；

This unified fusion core net inquires about the calling of this active calls according to this LAI and this Traffic Channel number Context；

This unified fusion core net indicate this broadband trunked base station according to this number, in this SDP and this calling Hereinafter this active calls distributing radio resource.

In conjunction with the third aspect of the embodiment of the present invention, in the 4th kind of reality of the third aspect of the embodiment of the present invention In existing mode, when this equipment of the core network is unified fusion core net, equipment of the core network receives the request of terminal Include in broadband service distributing wireless resources for cells for active calls:

This unified fusion core net receives this terminal by arrowband trunked base station corresponding to this narrowband service community The community handover request sent, this community handover request includes the number of this terminal, the SDP of this terminal；

This unified fusion core net inquires about the call context of this active calls；

In conjunction with the third aspect of the embodiment of the present invention, in the 5th kind of reality of the third aspect of the embodiment of the present invention In existing mode, when this equipment of the core network is the broadband core networks of this broadband service community ownership, core net sets The standby request receiving terminal is that active calls includes in broadband service distributing wireless resources for cells:

This broadband core networks receives the community handover request that this terminal is sent by this broadband trunked base station, should Community handover request includes the number of this terminal, the SDP of this terminal, the LAI of this narrowband service community with And the Traffic Channel number of this narrowband service community；

The narrowband core net that this broadband core networks belongs to this narrowband service community sends the 4th community switching standard Standby request, the 4th community handover preparation request includes this number, this SDP, this LAI and this business Channel number, so that this narrowband core net inquires about this active calls according to this LAI and this Traffic Channel number Calling identity ID；

This broadband core networks receive this narrowband core net send the 5th community handover preparation request, the 5th Community handover preparation request carries this number, this SDP and this calling ID；

This broadband core networks inquires about the call context of this active calls according to this calling ID；

In conjunction with the third aspect of the embodiment of the present invention, in the 6th kind of reality of the third aspect of the embodiment of the present invention In existing mode, when this equipment of the core network is the narrowband core net of this narrowband service community ownership, core net sets The standby request receiving terminal is that active calls includes in broadband service distributing wireless resources for cells:

This narrowband core net is received this terminal and is sent by the arrowband trunked base station that this narrowband service community is corresponding Community handover request, this community handover request carries the number of this terminal and the SDP of this terminal；

The broadband core networks that this narrowband core net belongs to this broadband service community sends the 6th community switching standard For request, the 6th community handover preparation request carries this number, this SDP and the calling of this active calls Identity ID so that this broadband core networks indicate this broadband trunked base station according to this number, this SDP Being this active calls distributing radio resource with this call context, this call context is this broadband core networks Inquire about this active calls according to this calling ID to obtain.

In conjunction with the third aspect of the embodiment of the present invention, in the 7th kind of reality of the third aspect of the embodiment of the present invention In existing mode, when this equipment of the core network is the broadband core networks of this broadband service community ownership, core net sets The standby request receiving terminal is that active calls includes in broadband service distributing wireless resources for cells:

This broadband core networks is received this terminal and is sent by the broadband trunked base station that this broadband service community is corresponding Community handover request；

The narrowband core net that this broadband core networks belongs to this narrowband service community sends the switching of this seven cell Preparation request, this seven cell handover preparation request includes the number of this terminal, the SDP of this terminal, should The LAI of narrowband service community and the Traffic Channel number of this narrowband service community, so that this narrowband service The narrowband core net of community ownership sends the 8th community handover preparation request to group ownership narrowband core net, should 8th community handover preparation request includes this number, and this SDP and calling ID, this calling ID is by this arrowband The narrowband core net of Serving cell ownership obtains according to this LAI and this Traffic Channel inquiry；

This broadband core networks receives the 9th community handover preparation request that this group ownership narrowband core net sends, 9th community handover preparation request includes this number, this SDP and call context, this call context Obtained according to this calling ID inquiry by this group ownership narrowband core net；

In conjunction with the third aspect of the embodiment of the present invention, in the 8th kind of reality of the third aspect of the embodiment of the present invention In existing mode, when this equipment of the core network is the narrowband core net of this narrowband service community ownership, core net sets The standby request receiving terminal is that active calls includes in broadband service distributing wireless resources for cells:

The narrowband core net of this narrowband service community ownership is received this terminal and is belonged to by this narrowband service community The community handover request that sends of arrowband trunked base station, this community handover request include this terminal number and The SDP of this terminal；

The calling ID of this active calls inquired about by the narrowband core net of this narrowband service community ownership；

The narrowband core net of this narrowband service community ownership sends the tenth community to group ownership narrowband core net and cuts Changing preparation request, the tenth community handover preparation request carries the number of this terminal, the SDP of this terminal and This calling ID, so that the broadband core networks that this group ownership narrowband core net belongs to this broadband service community Sending the 11st community handover preparation request, the 11st community handover preparation request includes this number, should SDP and this call context, this call context is looked into according to this calling ID by this group ownership narrowband core net Inquiry obtains, this number, and this SDP and this call context indicate this broadband cluster for this broadband core networks Base station is this active calls distributing radio resource.

Fourth aspect, the embodiment of the present invention provides a kind of equipment of the core network, and this equipment of the core network has realization The function that in said method, equipment of the core network realizes.This function can be realized by hardware, it is also possible to passes through Hardware performs corresponding software and realizes.This hardware or software include one or more corresponding with above-mentioned functions Module.

In a kind of possible implementation, this equipment of the core network includes:

Distribution module, is that active calls distributes wireless money in broadband service community for receiving the request of terminal Source, this terminal participates in this active calls in narrowband service community, and this terminal is in this broadband service community and is somebody's turn to do All there is registration narrowband service community；

Sending module, for being sent to this terminal by the information of this Radio Resource, so that this terminal is permissible Information according to this Radio Resource switches to this broadband service community from this narrowband service community, and to continue this current Calling.

In alternatively possible implementation, this equipment of the core network includes:

Transceiver, processor and bus；

This transceiver is connected by this bus with this processor；

This processor, such as gives an order for execution: the request receiving terminal is that active calls is in broadband service Distributing wireless resources for cells, this terminal participates in this active calls in narrowband service community, and this terminal is at this width Band Serving cell and narrowband service community are all registered；

This transceiver, such as gives an order for execution: by the letter of this Radio Resource that this processing module gets Breath is sent to this terminal, so that this terminal is cut from this narrowband service community according to the information of this Radio Resource Shift to this broadband service community and continue 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 narrowband service community can obtain broadband clothes The information of Radio Resource of active calls present in business community, can be from according to the information of this Radio Resource Narrowband service community switches to broadband service community and this Radio Resource of profit continues active calls, by above-mentioned Scheme so that dual-mode terminal can be switched to broadband service community from narrowband service community, continues holding and exhales Cry, it is to avoid call drop.

Accompanying drawing explanation

For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to required in embodiment Accompanying drawing to be used is briefly described, it should be apparent that, the accompanying drawing in describing below is only the present invention Some embodiments, for those of ordinary skill in the art, in the premise not paying creative work Under, it is also possible to other accompanying drawing is obtained 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 another Signalling exchange schematic diagram of embodiment of the present invention cell switching method；

Figure 12 is another Signalling exchange schematic diagram of embodiment of the present invention cell switching method；

Figure 13 is another Signalling exchange schematic diagram of embodiment of the present invention cell switching method；

Figure 14 is one structural representation of embodiment of the present invention terminal；

Figure 15 is another structural representation of embodiment of the present invention terminal；

Figure 16 is a structural representation of embodiment of the present invention equipment of the core network；

Figure 17 is another structural representation of embodiment of the present invention equipment of the core network.

Detailed description of the invention

Embodiments provide a kind of cell switching method and terminal, for realizing from broadband cell Switching toward community, arrowband, it is to avoid call drop.

" first ", " second " that the description and claims of this application and above-mentioned accompanying drawing relate to, " Three ", " the 4th " (if present) etc. be for distinguishing similar object, specific without being used for describing Order or precedence.Should be appreciated that the data of so use can be exchanged in the appropriate case, in order to this In describe embodiment can with in addition to the content except here illustrating or describe order implement.Additionally, Term " includes " and " having " and their any deformation, it is intended that cover non-exclusive comprising, such as, Contain series of steps or the process of unit, method, system, product or equipment are not necessarily limited to clearly Those steps listed or unit, but can include the most clearly listing or for these processes, side Other step that method, product or equipment are intrinsic or unit.

The cell switching method that the embodiment of the present invention provides can apply to the network architecture of gateway interconnection, also Can apply to the network architecture of unified fusion.The terminal being previously mentioned in the embodiment of the present invention is for support simultaneously Broadband system and the dual-mode terminal of narrowband systems, terminal is in dual standby mode, and i.e. terminal is simultaneously in broadband Serving cell and narrowband service cell registration at net, and terminal passes through narrowband service community and participates in one Calling (individual calling or group are exhaled).The cell switching method that the embodiment of the present invention provides so that terminal can be from Narrowband service community is switched to broadband Target cell, continues to keep calling, it is to avoid call drop.The present invention implements The terminal being previously mentioned in example can be that intercom can also be for mobile phone.

Below by specific embodiment, it is described in detail respectively, refers to Fig. 3, the embodiment of the present invention A kind of cell switching method is provided, including:

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

This terminal initiates active calls in this narrowband service community, and this terminal is cluster dual-mode terminal.I.e. 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 Radio Resource of active calls present in this broadband service community.

Terminal can monitor the letter of group system current service cell, arrowband (i.e. narrowband service community) simultaneously Number quality (such as can weigh according to received signal strength indicator RSSI or error rate BER) and broadband The signal quality of group system current service cell (i.e. broadband service community) (such as can be according to reference to letter Number receive power RSRP or Reference Signal Received Quality RSRQ weigh), by default decision algorithm Judge currently whether meet switching condition, such as, preset less than first when the signal quality of narrowband service community Threshold value, and the signal quality of broadband service community is higher than the second predetermined threshold value, then it is assumed that meet switching condition, Second predetermined threshold value is more than or equal to the first predetermined threshold value.

Determine meet switching condition and determine that needs switch time, terminal needs to obtain in broadband service community The information of the Radio Resource of the active calls existed.

Wherein, distribute before present in broadband service community, the Radio Resource of active calls can be switching (such as active calls is that group is exhaled, and has the most participated in active calls in this broadband service community)； Or present in broadband service community the Radio Resource of active calls be switching time distribute in real time (such as Broadband service has neither part nor lot in current group and exhales or time active calls is individual calling, the broadband core of broadband service community ownership Heart net, after the request receiving terminal, controls the broadband trunked base station that broadband service community is corresponding, at width Band Serving cell is active calls distributing radio resource in real time).

Present in broadband service community, the information of the Radio Resource of active calls can include Radio Resource control (English full name: Radio Resource Control, is called for short: RRC) configuration parameter (includes radio chains system (English full name: Radio Link Control, is called for short: RLC) parameter, media interviews circuit control layer agreement Control (English full name: Media Access Control, be called for short: MAC) parameter and physical layer parameter), UE metrical information etc..

303, terminal switches to this broadband service according to the information of this Radio Resource from this narrowband service community Community also utilizes this Radio Resource to continue this active calls.

This terminal, after the information acquiring this Radio Resource, will switch to this from narrowband service community Broadband service community.

Description based on said method is it is understood that in 302 steps, if broadband service community Present in the Radio Resource of active calls be distribution before switching, and broadband service community has participated in working as Front group is exhaled, then the method for the information that terminal obtains this Radio Resource is as follows: terminal is directly by this broadband The message of the broadcast of eating dishes without rice or wine of Serving cell obtains the information of this Radio Resource.

The most several embodiments are discussed in detail when the Radio Resource of the active calls in broadband service community is for cutting Distribute in real time when changing time, terminal obtains the method for the information of this Radio Resource.Wherein Fig. 4 to Fig. 9 pair Answer the network structure that gateway interconnects, the network architecture of Figure 10 to Figure 13 correspondence unified fusion.

Referring initially to Fig. 4, in the present embodiment, this Radio Resource is the broadband that this broadband service community is corresponding Trunked base station distributes for this active calls in real time when switching, and this broadband trunked base station is controlled by this broadband The broadband core networks of Serving cell ownership, active calls is that group is exhaled, and group ownership narrowband core net, terminal is worked as Before be in narrowband service community, active calls is continued in broadband service community to be switched to, and terminal is taken by arrowband Handover request is initiated in business community, and concrete grammar includes:

Terminal, after determining and needing to carry out community switching, is sent out to narrowband core net by this arrowband trunked base station Playing community handover request P_HANDOVER, this P_HANDOVER can carry the user of this terminal Number and the relevant parameter of Session Description Protocol SDP；

The narrowband core net of this narrowband service community ownership is inquired about according to the Traffic Channel residing for this terminal and is deserved The calling identity ID of front calling, and send community handover preparation request to group ownership narrowband core net, Call context (the such as caller of this active calls inquired about by this group ownership narrowband core net according to this calling ID Number 15708971878, called sets of numbers 18908157150, type of call, the information such as call property)；

This group belongs to narrowband core Netcom and crosses gateway to broadband core networks transmission community handover preparation request PSIP PREPARE, this PSIP PREPARE carry this number, and this SDP and this call context (should Calling number, called sets of numbers, type of call, the information such as call property)；

This PSIP PREPARE is converted to SIP (REFER) signaling and mails to this broadband core networks by this gateway, This SIP (REFER) signaling carries this SDP, this number and this call context (this calling number, Called sets of numbers, type of call, the information such as call property)；

This broadband core networks by the broadband trunked base station that controlled by this broadband core networks of instruction according to this number, This SDP and this call context are this active calls distributing radio resource；

This broadband core networks sends feedback message SIP 200OK signaling to gateway；

This SIP 200OK Signalling conversion is that feedback message PSIP 200OK signaling is sent to this by this gateway Group ownership narrowband core net, PSIP 200OK signaling is sent to this arrowband by this group ownership narrowband core net The narrowband core net of Serving cell ownership；

This terminal receives Group Call Config message (this message bearing of this broadband trunked base station broadcast The NAS message GROUP CALL SETUP INDICATION that this broadband core networks sends), obtain This broadband trunked base station is the information of the Radio Resource of this active calls distribution；

It is little that this terminal switches to this broadband service according to the information of this Radio Resource from this narrowband service community District, and utilize this Radio Resource transceiving data to continue this active calls.

Referring to Fig. 5, in the present embodiment, this Radio Resource is the broadband cluster that this broadband service community is corresponding Base station is distributed for this active calls in real time when switching, and this broadband trunked base station is controlled by this broadband service The broadband core networks of community ownership；This active calls is that group is exhaled, group ownership broadband core networks；Terminal is current Being in narrowband service community, active calls is continued in broadband service community to be switched to, and terminal is by narrowband service Handover request is initiated in community, and concrete grammar includes:

This narrowband core net inquires about the calling identity mark of this active calls according to the Traffic Channel residing for this terminal Know ID；

This narrowband core Netcom crosses gateway and sends community handover preparation request PSIP to broadband core networks PREPARE, this PSIP PREPARE carry this calling ID, the number of this terminal and this terminal SDP；

This PSIP PREPARE is converted to SIP (REFER) signaling and mails to this broadband core networks by this gateway, This SIP (REFER) signaling carries this calling ID, the number of this terminal and the SDP of this terminal；

This broadband core networks feeds back SIP 200OK signaling to gateway；

This SIP 200OK Signalling conversion is that PSIP 200OK signaling is sent to this narrowband core by this gateway Net；

This terminal receives Group Call Config message (this message bearing of this broadband trunked base station broadcast The NAS message GROUP CALL SETUP INDICATION that this broadband core networks sends), obtaining should Broadband trunked base station is the information of the Radio Resource of this active calls distribution；

Referring to Fig. 6, in the present embodiment, this Radio Resource is the broadband cluster that this broadband service community is corresponding Base station is distributed for this active calls in real time when switching, and this broadband trunked base station is controlled by this broadband service The broadband core networks of community ownership；This active calls is that group is exhaled, group ownership broadband core networks；Terminal is current Being in narrowband service community, active calls is continued in broadband service community to be switched to, and terminal is by broadband service Handover request is initiated in community, and concrete grammar includes:

Terminal, after determining and needing to carry out community switching, is broadcasted to broadband core networks by broadband trunked base station Community handover request TRUNKING HANDOVER REQUEST, carries the number of this terminal, should The SDP of terminal, the LAI of this narrowband service community and the Traffic Channel number of this narrowband service community；

This broadband core networks sends community handover preparation request SIP by gateway to this narrowband core net REFER, this SIP REFER carry the number of this terminal, the SDP of this terminal, and this narrowband service is little The LAI in district and the Traffic Channel number of this narrowband service community；

This SIP REFER is converted to PSIP PREPARE signaling and mails to this narrowband core net by this gateway, This signaling carries the number into this terminal, the SDP parameter of this terminal, the LAI of this narrowband service community and The Traffic Channel number of this narrowband service community；

This narrowband core net LAI according to this narrowband service community and the Traffic Channel of this narrowband service community Number inquire about this active calls calling ID；

This narrowband core Netcom crosses this gateway and sends community handover preparation request PSIP to this broadband core networks PREPARE, this PSIP PREPARE carry the number of this terminal, the SDP of this terminal and this calling ID；

This broadband core networks inquires about context (this calling number, the quilt of this active calls according to this calling ID It is the information such as sets of numbers, type of call, call property)；

Referring to Fig. 7, in the present embodiment, this Radio Resource is the broadband cluster that this broadband service community is corresponding Base station is distributed for this active calls in real time when switching, and this broadband trunked base station is controlled by this broadband service The broadband core networks of community ownership；This active calls is that group is exhaled, group ownership narrowband core net；Terminal is current Being in narrowband service community, active calls is continued in broadband service community to be switched to, and terminal is by broadband service Handover request is initiated in community, and concrete grammar includes:

Terminal, after determining and needing to carry out community switching, is broadcasted to broadband core networks by broadband trunked base station TRUNKING HANDOVER REQUEST, carries the number of this terminal, the SDP of this terminal, The LAI of this narrowband service community and the Traffic Channel number of this narrowband service community；

This broadband core networks sends community by the narrowband core net that gateway belongs to this narrowband service community and cuts Changing preparation request SIP REFER, this SIP REFER carries the number of this terminal, the SDP of this terminal, The LAI of this narrowband service community and the Traffic Channel number of this narrowband service community；

This SIP REFER is converted to PSIP PREPARE signaling and mails to this narrowband service community by this gateway This narrowband core net of ownership, this signaling carries the number into this terminal, the SDP of this terminal, this arrowband The LAI of Serving cell and the Traffic Channel number of this narrowband service community；

This narrowband core net of this narrowband service community ownership is narrow with this according to the LAI of this narrowband service community Traffic Channel number with Serving cell inquires about the calling ID of this active calls, and this calling ID is sent to this Group ownership narrowband core net；

Context (this caller number of this active calls inquired about by this group ownership narrowband core net according to this calling ID Code, called sets of numbers, type of call, the information such as call property)；

This group belongs to narrowband core Netcom and crosses gateway to this broadband core networks transmission community handover preparation request PSIP PREPARE, this PSIP PREPARE carry the number of this terminal, the SDP of this terminal and should Call context (this calling number, called sets of numbers, type of call, the information such as call property)；

This PSIP PREPARE is converted to SIP (REFER) signaling and mails to this broadband core networks by this gateway, This SIP (REFER) signaling carries the number of this terminal, the SDP of this terminal and this call context (this calling number, called sets of numbers, type of call, the information such as call property)；

The broadband trunked base station that instruction is controlled by this broadband core networks by this broadband core networks is according to this terminal Number, the SDP of this terminal and this call context are this active calls distributing radio resource；

This broadband core networks feeds back SIP 200OK signaling to gateway；

This gateway by this SIP 200OK Signalling conversion be PSIP 200OK signaling be sent to this group ownership narrow Band core net, it is little that this PSIP 200OK signaling is sent to this narrowband service by this group ownership narrowband core net The narrowband core net of district's ownership；

Referring to Fig. 8, in the present embodiment, this Radio Resource is the broadband cluster that this broadband service community is corresponding Base station is distributed for this active calls in real time when switching, and this broadband trunked base station is controlled by this broadband service The broadband core networks of community ownership；This active calls is individual calling；Terminal is currently at narrowband service community, Active calls is continued in broadband service community to be switched to, and terminal is initiated handover request by broadband service community, Concrete grammar includes:

This SIP REFER is converted to PSIP PREPARE signaling and mails to this narrowband core net by this gateway, This signaling carries the number into this terminal, the SDP of this terminal, and the LAI of this narrowband service community is narrow with this Traffic Channel number with Serving cell；

This narrowband core net LAI according to this narrowband service community and the Traffic Channel of this narrowband service community Number inquire about this active calls context (this calling number, called sets of numbers, type of call, calling belong to The information such as property)；

This narrowband core Netcom crosses gateway and sends community handover preparation request PSIP to broadband core networks PREPARE, this PSIP PREPARE carry the number of this terminal, the SDP of this terminal and this calling Context (this calling number, called sets of numbers, type of call, the information such as call property)；

This terminal receives the RRC connection reallocation message RRC Connection that this broadband trunked base station sends Reconfig, obtains the information of the Radio Resource that this broadband trunked base station is the distribution of this active calls；

This terminal sends RRC connection to this broadband trunked base station and heavily joins completion message RRC Connection Reconfig Complete the information according to this Radio Resource switch to this broadband from this narrowband service community Serving cell, and utilize this Radio Resource transceiving data to continue this active calls；

This broadband core networks completes to gateway feedback SIP 200OK signaling instruction switching；

This SIP 200OK Signalling conversion is that PSIP 200OK signaling is sent to this narrowband core by this gateway Net.

Referring to Fig. 9, in the present embodiment, this Radio Resource is the broadband cluster that this broadband service community is corresponding Base station is distributed for this active calls in real time when switching, and this broadband trunked base station is controlled by this broadband service The broadband core networks of community ownership；This active calls is individual calling；Terminal is currently at narrowband service community, Active calls is continued in broadband service community to be switched to, and terminal is initiated handover request by narrowband service community, Concrete grammar includes:

Call context (the such as calling number of this active calls inquired about by this narrowband core net 15708971878, called sets of numbers 18908157150, type of call, the information such as call property)；

RRC connects and heavily joins completion message RRC Connection Reconfig Complete wireless according to this The information of resource switches to this broadband service community from this narrowband service community, and utilizes this Radio Resource to receive Send out data and continue this active calls；

Referring to Figure 10, in the present embodiment, this Radio Resource is the broadband collection that this broadband service community is corresponding Group base station is distributed for this active calls in real time when switching, and this broadband trunked base station is controlled by this unification and melts Close core net；This active calls is that group is exhaled；Terminal is currently at narrowband service community, broadband to be switched to Serving cell continues active calls, and terminal is initiated handover request by narrowband service community, and concrete grammar includes:

Terminal is after determining and needing to carry out community switching, by this arrowband trunked base station to unified fusion core Community handover request P_HANDOVER initiated by net, and this P_HANDOVER can carry this terminal Subscriber Number and the relevant parameter of Session Description Protocol SDP；

This unified fusion core net is inquired about in the calling of this active calls according to the Traffic Channel residing for this terminal Hereafter；

This unified fusion core net by instruction by this unified fusion core net control broadband trunked base station according to The number of this terminal, the SDP of this terminal and this call context are this active calls distributing radio resource；

Referring to Figure 11, in the present embodiment, this Radio Resource is the broadband collection that this broadband service community is corresponding Group base station is distributed for this active calls in real time when switching, and this broadband trunked base station is controlled by this unification and melts Close core net；This active calls is that group is exhaled；Terminal is currently at narrowband service community, broadband to be switched to Serving cell continues active calls, and terminal is initiated handover request by broadband service community, and concrete grammar includes:

Terminal is after determining and needing to carry out community switching, by broadband trunked base station to unified fusion core net Broadcast TRUNKING HANDOVER REQUEST, carries the number of this terminal, the SDP of this terminal The Traffic Channel number of parameter, the LAI of this narrowband service community and this narrowband service community；

This LAI of Traffic Channel that this unified fusion core net is somebody's turn to do according to this terminal and this Traffic Channel number are inquired about The context of this active calls (this calling number, called sets of numbers, type of call, believe by call property etc. Breath)；

This unified fusion core net by instruction by this unified fusion core net control broadband trunked base station according to The number of this terminal, the SDP parameter of this terminal and this call context are that this active calls distributes wireless money Source；

Referring to Figure 12, in the present embodiment, this Radio Resource is the broadband collection that this broadband service community is corresponding Group base station is distributed for this active calls in real time when switching, and this broadband trunked base station is controlled by this unification and melts Close core net；This active calls is individual calling；Terminal is currently at narrowband service community, broadband to be switched to Serving cell continues active calls, and terminal is initiated handover request by narrowband service community, and concrete grammar includes:

This unified fusion core net is inquired about in the calling of this active calls according to the Traffic Channel residing for this terminal Hereafter (such as calling number 15708971878, called sets of numbers 18908157150, type of call, exhale It is the information such as attribute)；

This terminal sends RRC connection to this broadband trunked base station and heavily joins completion message RRC Connection Reconfig Complete the information according to this Radio Resource switch to this broadband from this narrowband service community Serving cell, and utilize this Radio Resource transceiving data to continue this active calls.

Referring to Figure 13, in the present embodiment, this Radio Resource is the broadband collection that this broadband service community is corresponding Group base station is distributed for this active calls in real time when switching, and this broadband trunked base station is controlled by this unification and melts Close core net；This active calls is individual calling；Terminal is currently at narrowband service community, broadband to be switched to Serving cell continues active calls, and terminal is initiated handover request by broadband service community, and concrete grammar includes:

This unified fusion core net inquires about the context of this active calls according to this LAI and this Traffic Channel number (this calling number, called sets of numbers, type of call, the information such as call property)；

In the present embodiment, it is little that the terminal at narrowband service community participation active calls can obtain broadband service The information of the Radio Resource of active calls present in district, the information according to this Radio Resource can be from arrowband Serving cell switches to broadband service community and this Radio Resource of profit continues active calls, by above-mentioned side Case so that dual-mode terminal can be switched to broadband service community from narrowband service community, continues holding and exhales Cry, it is to avoid call drop.

Terminal that the embodiment of the present invention provide being described below, specifically refers to shown in Figure 14, the present embodiment carries The terminal 1400 of confession includes:

Calling module 1401, for participating in active calls in narrowband service community, this terminal is in broadband service All there is registration community and this narrowband service community；

Acquisition module 1402, for obtain that this calling module in this broadband service community participates in this is current The information of the Radio Resource of calling；

Processing module 1403, for the information of this Radio Resource that acquires according to this acquisition module from this Narrowband service community switches to this broadband service community and utilizes this Radio Resource to continue this active calls.

Optionally, this acquisition module 1402 includes:

Request unit, being used for asking equipment of the core network is that this active calls distributes nothing in this broadband service community Line resource；

First acquiring unit, for receiving being somebody's turn to do of broadband trunked base station transmission corresponding to this broadband service community The information of Radio Resource.

Optionally, this acquisition module 1402 also includes:

First judging unit, is used for judging whether this active calls is that group is exhaled, the most then this terminal receives The broadcast message that this broadband service community sends；

According to this this broadcast message of the first judging unit, second judging unit, for judging whether this terminal joins Exhale with this group, if it is not, then triggering this equipment of the core network of request is that this active calls is in this broadband service community Distributing radio resource.

Optionally, this request unit includes:

First processes subelement, cuts for sending community by this broadband trunked base station to this broadband core networks Changing request, this community handover request includes the number of this terminal, the SDP of this terminal, and this narrowband service is little The LAI in district and the Traffic Channel number of this narrowband service community, so that this broadband core networks is to this arrowband The narrowband core net of Serving cell ownership sends the 3rd community handover preparation request, the 3rd community switching standard Standby request includes this number, this SDP, this LAI and this Traffic Channel number, and indicates this broadband cluster Base station is according to this number, and this SDP and this call context are this active calls distributing radio resource, and this is exhaled Call the calling identity ID hereafter sent according to this narrowband core net by this broadband core networks to inquire about Arriving, this calling ID is obtained according to this LAI and this Traffic Channel inquiry by this narrowband core net.

Optionally, this request unit includes:

Second processes subelement, is used for the arrowband trunked base station by this narrowband service community is corresponding narrow to this Narrowband core net with Serving cell ownership sends community handover request, and this community handover request carries this end The number of end and the SDP of this terminal, so that this narrowband core net is little to the transmission the 4th of this broadband core networks District's handover preparation request, the 4th community handover preparation request carries this number, this SDP and this currently exhale The calling identity ID cried, this calling ID inquire about the calling of this active calls for this broadband core networks Context, this number, this SDP and this call context indicate this broadband cluster for this broadband core networks Base station is this active calls distributing radio resource.

Optionally, this request unit includes:

3rd processes subelement, for the broadband trunked base station corresponding by this broadband service community to this width Broadband core networks with Serving cell ownership sends community handover request, so that this broadband core networks is to this The narrowband core net of narrowband service community ownership sends the 5th community handover preparation request, and the 5th community is cut Change preparation request and include the number of this terminal, the SDP of this terminal, the LAI of this narrowband service community and The Traffic Channel number of this narrowband service community, and indicate this broadband trunked base station according to including this number, it is somebody's turn to do SDP and this call context are this active calls distributing radio resource, and this call context is narrow by organizing ownership Band core net is inquired about according to calling ID and is sent to this broadband core networks, and this calling ID is by this narrowband service The narrowband core net of community ownership is inquired about according to this LAI and this Traffic Channel number and is sent to this group ownership Narrowband core net.

Optionally, this request unit includes:

Fourth process subelement, for narrow to this by the arrowband trunked base station of this narrowband service community ownership Narrowband core net with Serving cell ownership sends community handover request, and this community handover request includes this end The number of end and the SDP of this terminal, so that the narrowband core net inquiry of this narrowband service community ownership should The calling ID of active calls is also sent to group ownership narrowband core net, and this calling ID is narrow for this group ownership Inquire about the call context of this active calls with core net, this number, this SDP and this call context are used This broadband trunked base station is indicated to be this active calls distributing radio resource in this broadband core networks；

Optionally, this request unit includes:

First judgment sub-unit, is used for judging whether this active calls is individual calling；

5th processes subelement, if being individual calling for this active calls, then by this broadband service community pair The broadband core networks that the broadband trunked base station answered belongs to this broadband service community sends community handover request, So that the narrowband core net that this broadband core networks belongs to this narrowband service community sends the first community switching Preparation request, this first community handover preparation request includes the number of this terminal, the conversation description of this terminal Agreement SDP, the wireless position identifier LAI of this narrowband service community and the business of this narrowband service community Channel number, and indicate this broadband trunked base station according to this number, this SDP and call context are that this is current Calling distributing radio resource, this call context by this narrowband core net according to this LAI and this Traffic Channel Number inquiry and be sent to this broadband core networks.

Optionally, this request unit includes:

Second judgment sub-unit, is used for judging whether this active calls is individual calling；

6th processes subelement, if being individual calling for this active calls, then by this narrowband service community pair The narrowband core net that the arrowband trunked base station answered belongs to this narrowband service community sends community handover request, So that this narrowband core net sends the second community handover preparation request to this broadband core networks, this is second little District's handover preparation request carries this number, and this SDP and the call context of this active calls, in this calling Context information is obtained by the inquiry of this narrowband core net, this number, and this SDP and this call context are for being somebody's turn to do Broadband core networks indicates this broadband trunked base station to be this active calls distributing radio resource.

Optionally, this request unit includes:

7th processes subelement, for the broadband trunked base station corresponding by this broadband service community to this system One converged CN sends community handover request, and this community handover request includes the number of this terminal, and this is eventually The SDP of end, the LAI of this narrowband service community and this Traffic Channel number, so that this unified fusion core Heart net inquires about the call context of this active calls according to this LAI and this Traffic Channel number, and instruction should Broadband trunked base station is according to this number, and this SDP and this call context are that this active calls distributes wireless money Source.

Optionally, this request unit includes:

8th processes subelement, for the arrowband trunked base station corresponding by this narrowband service community to this system One converged CN sends community handover request, and this community handover request includes the number of this terminal, and this is eventually The SDP of end, so that this unified fusion core net inquires about the call context of this active calls, and indicates This broadband trunked base station is according to this number, and this SDP and this call context are that the distribution of this active calls is wireless Resource.

Optionally, this acquisition module 1402 also includes:

3rd judging unit, is used for judging whether this active calls is that group is exhaled, the most then this terminal receives The broadcast message that this broadband service community sends；

4th judging unit, for judging whether this terminal participates in this group and exhale according to this broadcast message, if It is then to receive the Radio Resource that this group that broadband trunked base station corresponding to this broadband service community send exhales Information.

In the present embodiment, when calling module 1401 participates in active calls in narrowband service community, obtain mould Block 1402 can obtain the information of the Radio Resource of the active calls in broadband service community, processing module 1403 can switch to broadband service community also profit according to the information of this Radio Resource from narrowband service community should Radio Resource continues active calls, passes through such scheme so that dual-mode terminal can be from narrowband service community It is switched to broadband service community, continues to keep calling, it is to avoid call drop.

Below from the angle of hardware unit, the terminal of above-described embodiment is described, refers to Figure 15, The terminal 1500 of the present embodiment includes:

Transceiver 1501, processor 1502 and bus 1503；

This transceiver 1501, this processor 1502 is connected by this bus 1503；

This transceiver 1501, such as gives an order for execution:

Participate in active calls in narrowband service community, this terminal is little in broadband service community and this narrowband service Qu Jun registers；Obtain the wireless money of this active calls that this calling module in this broadband service community participates in The information in source；

This processor 1502, such as gives an order for execution:

It addition, the terminal 1500 in the present embodiment can also include that memory 1504, memory 1504 are used In storage software program and data cached, transceiver 1501 and memory 1504 by bus 1503 with Processor 1502 communicates to connect.

The terminal 1500 of the present embodiment can also carry out other steps of preceding method embodiment, the most no longer Repeat.

In the present embodiment, when transceiver 1501 participates in active calls in narrowband service community, processor 1502 The information of the Radio Resource of active calls, processor 1502 present in broadband service community can be obtained Broadband service community this wireless money of profit can be switched to from narrowband service community according to the information of this Radio Resource Active calls is continued in source, passes through such scheme so that dual-mode terminal can be switched to from narrowband service community Broadband service community, continues to keep calling, it is to avoid call drop.

Equipment of the core network that the embodiment of the present invention provide is described below, specifically refers to shown in Figure 16, this reality The equipment of the core network 1600 that executing example provides includes:

Distribution module 1601, is that active calls distributes nothing in broadband service community for receiving the request of terminal Line resource, this terminal participates in this active calls in narrowband service community, and this terminal is in this broadband service community And all there is registration this narrowband service community；

Sending module 1602, for the information of this Radio Resource is sent to this terminal, so that this terminal Information according to this Radio Resource switches to this broadband service community from this narrowband service community, and to continue this current Calling.

Optionally, when this equipment of the core network is the broadband core networks of this broadband service community ownership, this distribution Module 1601 includes:

First receives unit, please by the community switching that this broadband trunked base station sends for receiving this terminal Ask；

First transmitting element, for sending the first community to the narrowband core net of this narrowband service community ownership Handover preparation request, this first community handover preparation request includes the number of this terminal, the session of this terminal Agreement SDP, the wireless position identifier LAI of this narrowband service community and this narrowband service community are described Traffic Channel number, currently exhales so that this narrowband core net inquires about this according to this LAI and this Traffic Channel number The call context cried；

Second receives unit, for receiving the second community handover preparation request that this narrowband core net sends, This second community handover preparation request carries this number, this SDP and this call context；

First allocation unit, be used for indicating this broadband trunked base station according to this number, this SDP and this calling Context is this active calls distributing radio resource.

Optionally, when this equipment of the core network is the narrowband core net of this narrowband service community ownership, this distribution Module 1601 includes:

3rd receives unit, for receiving this terminal by arrowband cluster base corresponding to this narrowband service community Stand send community handover request；

Second transmitting element, for sending the 3rd community handover preparation request to this broadband core networks, this is the years old Three community handover preparation request carry the number of this terminal, the SDP of this terminal and the calling of this active calls Context, this call context information is obtained by the inquiry of this narrowband core net, so that this broadband core networks Indicating this broadband trunked base station according to this number, this SDP and this call context are the distribution of this active calls Radio Resource.

Optionally, when this equipment of the core network is unified fusion core net, this distribution module 1601 includes:

4th receives unit, for receiving this terminal by broadband cluster base corresponding to this broadband service community Stand send community handover request, this community handover request includes the number of this terminal, the SDP of this terminal, The LAI of this narrowband service community and the Traffic Channel number of this narrowband service community；

First query unit, for inquiring about exhaling of this active calls according to this LAI and this Traffic Channel number Call hereafter；

Second allocation unit, be used for indicating this broadband trunked base station according to this number, this SDP and this calling Context is this active calls distributing radio resource.

5th receives unit, for receiving this terminal by arrowband cluster base corresponding to this narrowband service community Stand send community handover request, this community handover request includes the number of this terminal, the SDP of this terminal；

Second query unit, for inquiring about the call context of this active calls；

3rd allocation unit, be used for indicating this broadband trunked base station according to this number, this SDP and this calling Context is this active calls distributing radio resource.

6th receives unit, please by the community switching that this broadband trunked base station sends for receiving this terminal Asking, this community handover request includes the number of this terminal, the SDP of this terminal, this narrowband service community LAI and the Traffic Channel number of this narrowband service community；

3rd transmitting element, for sending the 4th community to the narrowband core net of this narrowband service community ownership Handover preparation request, the 4th community handover preparation request includes this number, this SDP, this LAI and This Traffic Channel number, deserves so that this narrowband core net is inquired about according to this LAI and this Traffic Channel number The calling identity ID of front calling；

7th receives unit, for receiving the 5th community handover preparation request that this narrowband core net sends, 5th community handover preparation request carries this number, this SDP and this calling ID；

3rd query unit, for inquiring about the call context of this active calls according to this calling ID；

4th allocation unit, be used for indicating this broadband trunked base station according to this number, this SDP and this calling Context is this active calls distributing radio resource.

8th receives unit, for receiving this terminal by arrowband cluster base corresponding to this narrowband service community Stand send community handover request, this community handover request carries the number of this terminal and the SDP of this terminal；

4th transmitting element, for sending the 6th community to the broadband core networks of this broadband service community ownership Handover preparation request, the 6th community handover preparation request carries this number, this SDP and this active calls Calling identity ID so that this broadband core networks indicate this broadband trunked base station according to this number, This SDP and this call context are this active calls distributing radio resource, and this call context is this broadband Core net is inquired about this active calls according to this calling ID and is obtained.

9th receives unit, for receiving this terminal by broadband cluster base corresponding to this broadband service community Stand send community handover request；

5th transmitting element is little for sending the 7th to the narrowband core net of this narrowband service community ownership District's handover preparation request, this seven cell handover preparation request includes the number of this terminal, this terminal SDP, the LAI of this narrowband service community and the Traffic Channel number of this narrowband service community, so that should The narrowband core net of narrowband service community ownership sends the 8th community switching to group ownership narrowband core net and prepares Request, the 8th community handover preparation request includes this number, this SDP and calling ID, this calling ID Inquired about according to this LAI and this Traffic Channel number by the narrowband core net of this narrowband service community ownership Arrive；

Tenth receives unit, and the 9th community switching sent for receiving this group ownership narrowband core net prepares Request, the 9th community handover preparation request includes this number, this SDP and call context, this calling Context is obtained according to this calling ID inquiry by this group ownership narrowband core net；

5th allocation unit, be used for indicating this broadband trunked base station according to this number, this SDP and this calling Context is this active calls distributing radio resource.

In the present embodiment, distribution module 1601 exists for this terminal after receiving the request that dual-mode terminal sends Distributing radio resource in broadband service community, the information of this Radio Resource is sent to this by sending module 1602 Dual-mode terminal, so that this dual-mode terminal may be according to the information of this Radio Resource from narrowband service community Switch to broadband service community and utilize this Radio Resource to converse.Pass through such scheme so that bimodulus Terminal can be switched to broadband service community from narrowband service community, continues to keep calling, it is to avoid call drop.

Below from the angle of hardware unit, the equipment of the core network of above-described embodiment is described, refers to Figure 17, the equipment of the core network 1700 of the present embodiment includes:

Transceiver 1701, processor 1702 and bus 1703；

This transceiver 1701, this processor 1702 is connected by this bus 1703；

This processor 1702, such as gives an order for execution:

Receive terminal request be active calls in broadband service distributing wireless resources for cells, this terminal is narrow Band Serving cell participates in this active calls, and this terminal is all noted in this broadband service community and narrowband service community Volume；

This transceiver 1701, such as gives an order for execution:

The information of this Radio Resource this processing module got is sent to this terminal, so that this terminal This broadband service community can be switched to according to the information of this Radio Resource from this narrowband service community continue to be somebody's turn to do Active calls.

It addition, the equipment of the core network 1700 in the present embodiment can also include memory 1704, memory 1704 are used for storing software program and data cached, and transceiver 1701 and memory 1704 pass through bus 1703 communicate to connect with processor 1702.

The equipment of the core network 1700 of the present embodiment can also carry out other steps of preceding method embodiment, this Place repeats no more.

In the present embodiment, processor 1702 is that this terminal is at width after receiving the request that dual-mode terminal sends Distributing radio resource in band Serving cell, the information of this Radio Resource is sent to this bimodulus by transceiver 1701 Terminal, so that this dual-mode terminal may switch from narrowband service community according to the information of this Radio Resource To broadband service community and utilize this Radio Resource to converse.Pass through such scheme so that dual-mode terminal Broadband service community can be switched to from narrowband service community, continue to keep calling, it is to avoid call drop.

Those skilled in the art is it can be understood that arrive, and for convenience and simplicity of description, above-mentioned retouches The specific works process of the system stated, device and unit, is referred to the correspondence in preceding method embodiment Process, does not repeats them here.

In several embodiments provided herein, it should be understood that disclosed system, device and Method, can realize by another way.Such as, device embodiment described above is only shown Meaning property, such as, the division of described unit, be only a kind of logic function and divide, actual can when realizing There to be other dividing mode, the most multiple unit or assembly can in conjunction with or be desirably integrated into another System, or some features can ignore, or do not perform.Another point, shown or discussed each other Coupling direct-coupling or communication connection can be the INDIRECT COUPLING by some interfaces, device or unit Or communication connection, can be electrical, machinery or other form.

The described unit illustrated as separating component can be or may not be physically separate, makees The parts shown for unit can be or may not be physical location, i.e. may be located at a place, Or can also be distributed on multiple NE.Can select according to the actual needs part therein or The whole unit of person realizes the purpose of the present embodiment scheme.

It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit In, it is also possible to it is that unit is individually physically present, it is also possible to two or more unit are integrated in one In individual unit.Above-mentioned integrated unit both can realize to use the form of hardware, it would however also be possible to employ software merit The form of energy unit realizes.

If described integrated unit realizes and as independent production marketing using the form of SFU software functional unit Or when using, can be stored in a computer read/write memory medium.Based on such understanding, this The part that the most in other words prior art contributed of technical scheme of invention or this technical scheme Completely or partially can embody with the form of software product, this computer software product is stored in one In storage medium, including some instructions with so that computer equipment (can be personal computer, Server, or the network equipment etc.) perform completely or partially walking of method described in each embodiment of the present invention Suddenly.And aforesaid storage medium includes: USB flash disk, portable hard drive, read-only storage (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), The various medium that can store program code such as magnetic disc or CD.

The above, above example only in order to technical scheme to be described, is not intended to limit； Although being described in detail the present invention with reference to previous embodiment, those of ordinary skill in the art should Work as understanding: the technical scheme described in foregoing embodiments still can be modified by it, or to it Middle part technical characteristic carries out equivalent；And these amendments or replacement, do not make appropriate technical solution Essence depart from various embodiments of the present invention technical scheme spirit and scope.

Claims

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

Terminal participates in active calls in narrowband service community, and described terminal is in broadband service community and described narrow Band Serving cell all has registration；

Described terminal obtains the information of the Radio Resource of the described active calls in described broadband service community；

Described terminal switches to described broadband according to the information of described Radio Resource from described narrowband service community Serving cell also utilizes described Radio Resource to continue described active calls.

Method the most according to claim 1, it is characterised in that described terminal obtains described broadband clothes Business community present in described active calls Radio Resource information particularly as follows:

Described terminal request equipment of the core network is that described active calls is wireless in the distribution of described broadband service community Resource；

Described terminal receives the described wireless money that broadband trunked base station corresponding to described broadband service community sends The information in source.

Method the most according to claim 2, it is characterised in that terminal participates in narrowband service community After active calls, described terminal request equipment of the core network is that described active calls is little in described broadband service Before district's distributing radio resource, described method also includes:

Whether active calls described in described terminal judges is that group is exhaled, and the most described terminal receives described width The broadcast message sent with Serving cell；

According to described broadcast message, described terminal judges whether described terminal participates in described group and exhale, if it is not, then Triggering equipment of the core network described in described terminal request is that described active calls distributes in described broadband service community Radio Resource.

The most according to the method in claim 2 or 3, it is characterised in that described terminal request core net Equipment is that described active calls includes in described broadband service distributing wireless resources for cells:

Described terminal sends community handover request by described broadband trunked base station to described broadband core networks, Described community handover request includes the number of described terminal, the Session Description Protocol SDP of described terminal, institute State wireless position identifier LAI and the Traffic Channel of described narrowband service community of narrowband service community Number, so that the narrowband core net that described broadband core networks belongs to described narrowband service community sends the 3rd Community handover preparation request, described 3rd community handover preparation request includes described number, described SDP, Described LAI and described Traffic Channel number, and indicate described broadband trunked base station according to described number, institute State SDP and described call context be described active calls distributing radio resource, described call context by The calling identity ID inquiry that described broadband core networks sends according to described narrowband core net obtains, described Calling ID is obtained according to described LAI and described Traffic Channel inquiry by described narrowband core net.

Described terminal is little to described narrowband service by the arrowband trunked base station that described narrowband service community is corresponding The narrowband core net of district's ownership sends community handover request, and described community handover request carries described terminal Number and the SDP of described terminal, so that described narrowband core net sends the 4th to described broadband core networks Community handover preparation request, described 4th community handover preparation request carries described number, described SDP and The calling ID of described active calls, described calling ID inquire about described active calls for described broadband core networks Call context, described number, described SDP and described call context are for described broadband core networks Indicating described broadband trunked base station is described active calls distributing radio resource.

Described terminal is little to described broadband service by the broadband trunked base station that described broadband service community is corresponding The broadband core networks of district's ownership sends community handover request, so that described broadband core networks is to described arrowband The narrowband core net of Serving cell ownership sends the 5th community handover preparation request, described 5th community switching Preparation request includes the number of described terminal, the SDP of described terminal, the LAI of described narrowband service community And the Traffic Channel number of described narrowband service community, and indicate described broadband trunked base station according to including Stating number, described SDP and described call context is described active calls distributing radio resource, described in exhale Call and hereafter inquired about and be sent to described broadband core networks, institute by group ownership narrowband core net according to calling ID State the calling narrowband core net that belonged to by described narrowband service community of ID according to described LAI and described business Channel number is inquired about and is sent to described group of ownership narrowband core net.

The arrowband trunked base station that described terminal is belonged to by described narrowband service community is little to described narrowband service The narrowband core net of district's ownership sends community handover request, and described community handover request includes described terminal Number and the SDP of described terminal, so that institute inquired about by the narrowband core net of described narrowband service community ownership Stating the calling ID of active calls and be sent to group ownership narrowband core net, described calling ID is used for described group Ownership narrowband core net inquires about the call context of described active calls, described number, described SDP and institute Stating call context indicates described broadband trunked base station to be that described active calls divides for described broadband core networks Join Radio Resource.

Method the most according to claim 2, it is characterised in that described terminal request equipment of the core network Include in described broadband service distributing wireless resources for cells for described active calls:

Whether active calls described in described terminal judges is individual calling；

If described active calls is individual calling, the most described terminal is by broadband corresponding to described broadband service community The broadband core networks that trunked base station belongs to described broadband service community sends community handover request, so that Described broadband core networks sends the first community switching standard to the narrowband core net that described narrowband service community belongs to Standby request, described first community handover preparation request includes the number of described terminal, the SDP of described terminal, The LAI of described narrowband service community and the Traffic Channel number of described narrowband service community, and indicate described width Band trunked base station is that the distribution of described active calls is wireless according to described number, described SDP and call context Resource, described call context is looked into according to described LAI and described Traffic Channel number by described narrowband core net Ask and be sent to described broadband core networks.

If described active calls is individual calling, the most described terminal is by arrowband corresponding to described narrowband service community The narrowband core net that trunked base station belongs to described narrowband service community sends community handover request, so that Described narrowband core net sends the second community handover preparation request to described broadband core networks, described second little District's handover preparation request carries described number, described SDP and the call context of described active calls, institute State call context information to be obtained by the inquiry of described narrowband core net, described number, described SDP and described Call context indicates described broadband trunked base station to be the distribution of described active calls for described broadband core networks Radio Resource.

Method the most according to claim 2, it is characterised in that described terminal request core net sets For including in described broadband service distributing wireless resources for cells for described active calls:

Described terminal by broadband trunked base station corresponding to described broadband service community to described unified fusion core Heart net sends community handover request, and described community handover request includes the number of described terminal, described terminal SDP, the LAI of described narrowband service community and described Traffic Channel number, so that described unification is melted Close core net upper and lower according to the calling of described LAI and the described Traffic Channel number described active calls of inquiry Literary composition, and indicate the described broadband trunked base station according to described number, described SDP and described call context to be Described active calls distributing radio resource.

11. methods according to claim 2, it is characterised in that described terminal request core net sets For including in described broadband service distributing wireless resources for cells for described active calls:

Described terminal by arrowband trunked base station corresponding to described narrowband service community to described unified fusion core Heart net sends community handover request, and described community handover request includes the number of described terminal, described terminal SDP so that described unified fusion core net inquires about the call context of described active calls, and refer to Show described broadband trunked base station according to described number, described SDP and described call context be described currently Calling distributing radio resource.

12. methods according to claim 1, it is characterised in that described terminal obtains described broadband The information of the Radio Resource of the described active calls in Serving cell includes:

According to described broadcast message, described terminal judges whether described terminal participates in described group and exhale, the most then Described terminal receives the described active calls of broadband trunked base station transmission corresponding to described broadband service community The information of Radio Resource.

13. 1 kinds of terminals, it is characterised in that including:

Calling module, for participating in active calls in narrowband service community, described terminal is little in broadband service All there is registration district and described narrowband service community；

Acquisition module, works as obtaining the described of described calling module participation in described broadband service community The information of the Radio Resource of front calling；

Processing module, for the information of described Radio Resource that acquires according to described acquisition module from institute State narrowband service community switch to described broadband service community and utilize the continuation of described Radio Resource described currently Calling.

14. terminals according to claim 13, 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 in the little differentiation of described broadband service Join Radio Resource；

First acquiring unit, for receiving what broadband trunked base station corresponding to described broadband service community sent The information of described Radio Resource.

15. terminals according to claim 13, it is characterised in that described acquisition module also includes:

First judging unit, is used for judging whether described active calls is that group is exhaled, the most described terminal Receive the broadcast message that described broadband service community sends；

Second judging unit, for judging described terminal according to broadcast message described in described first judging unit Whether participate in described group to exhale, if it is not, then triggering the described equipment of the core network of request is that described active calls is in institute State broadband service distributing wireless resources for cells.

16. according to the terminal described in claims 14 or 15, it is characterised in that described request unit bag Include:

First processes subelement, for sending little by described broadband trunked base station to described broadband core networks District's handover request, described community handover request includes the number of described terminal, the SDP of described terminal, institute State LAI and the Traffic Channel number of described narrowband service community of narrowband service community, so that described width Narrowband core net transmission the 3rd community switching belonged to described narrowband service community with core net prepares to ask Asking, described 3rd community handover preparation request includes described number, described SDP, described LAI and institute State Traffic Channel number, and indicate described broadband trunked base station according to described number, described SDP and described exhale Calling the most described active calls distributing radio resource, described call context is by described broadband core networks Obtaining according to the calling identity ID inquiry that described narrowband core net sends, described calling ID is by described Narrowband core net obtains according to described LAI and described Traffic Channel inquiry.

17. according to the terminal described in claims 14 or 15, it is characterised in that described request unit bag Include:

Second processes subelement, for the arrowband trunked base station corresponding by described narrowband service community to institute The narrowband core net stating narrowband service community ownership sends community handover request, and described community handover request is taken Number with described terminal and the SDP of described terminal, so that described narrowband core net is to described broadband core Heart net sends the 4th community handover preparation request, and described 4th community handover preparation request carries described number, The calling identity ID of described SDP and described active calls, described calling ID are used for described broadband core The call context of described active calls inquired about by heart net, and described number, described SDP and described calling are upper and lower Literary composition indicates described broadband trunked base station to be that described active calls distributes wireless money for described broadband core networks Source.

18. according to the terminal described in claims 14 or 15, it is characterised in that described request unit bag Include:

3rd processes subelement, for the broadband trunked base station corresponding by described broadband service community to institute The broadband core networks stating broadband service community ownership sends community handover request, so that described broadband core The narrowband core net that net belongs to described narrowband service community sends the 5th community handover preparation request, described 5th community handover preparation request includes the number of described terminal, the SDP of described terminal, and described arrowband takes The LAI of business community and the Traffic Channel number of described narrowband service community, and indicate described broadband cluster base Stand according to including that described number, described SDP and described call context are that the distribution of described active calls is wireless Resource, described call context is inquired about by organizing ownership narrowband core net according to calling ID and is sent to described width Band core net, the narrowband core net that described calling ID is belonged to by described narrowband service community is according to described LAI And described Traffic Channel number inquiry be sent to described group of ownership narrowband core net.

19. according to the terminal described in claims 14 or 15, it is characterised in that described request unit bag Include:

Fourth process subelement, for the arrowband trunked base station by described narrowband service community ownership to institute The narrowband core net stating narrowband service community ownership sends community handover request, described community handover request bag Include number and the SDP of described terminal of described terminal, so that the arrowband of described narrowband service community ownership Core net is inquired about the calling ID of described active calls and is sent to group ownership narrowband core net, described calling ID The call context of described active calls, described number, institute is inquired about for described group of ownership narrowband core net Stating SDP and described call context indicates described broadband trunked base station to be described for described broadband core networks Active calls distributing radio resource.

20. terminals according to claim 14, it is characterised in that described request unit includes:

First judgment sub-unit, is used for judging whether described active calls is individual calling；

5th processes subelement, if being individual calling for described active calls, then little by described broadband service The broadband core networks that broadband trunked base station corresponding to district belongs to described broadband service community sends community switching Request, so that the narrowband core net transmission that described broadband core networks belong to described narrowband service community One community handover preparation request, described first community handover preparation request includes the number of described terminal, institute State the Session Description Protocol SDP of terminal, the wireless position identifier LAI of described narrowband service community and institute State the Traffic Channel number of narrowband service community, and indicate described broadband trunked base station according to described number, institute Stating SDP and call context is described active calls distributing radio resource, described call context is by described Narrowband core net is inquired about according to described LAI and described Traffic Channel number and is sent to described broadband core networks.

21. terminals according to claim 14, it is characterised in that described request unit includes:

Second judgment sub-unit, is used for judging whether described active calls is individual calling；

6th processes subelement, if being individual calling for described active calls, then little by described narrowband service The narrowband core net that arrowband trunked base station corresponding to district belongs to described narrowband service community sends community switching Request, so that described narrowband core net sends the second community handover preparation request to described broadband core networks, Described second community handover preparation request carries described number, described SDP and the calling of described active calls Context, described call context information is obtained by the inquiry of described narrowband core net, and described number is described SDP and described call context indicate described broadband trunked base station to be described working as described broadband core networks Front calling distributing radio resource.

22. terminals according to claim 14, it is characterised in that described request unit includes:

7th processes subelement, for the broadband trunked base station corresponding by described broadband service community to institute State unified fusion core net and send community handover request, described community handover request include described terminal number Code, the SDP of described terminal, the LAI of described narrowband service community and described Traffic Channel number, so that Obtain described unified fusion core net and inquire about described active calls according to described LAI and described Traffic Channel number Call context, and indicate described broadband trunked base station according to described number, described SDP and described exhale Call the most described active calls distributing radio resource.

23. terminals according to claim 14, it is characterised in that described request unit includes:

8th processes subelement, for the arrowband trunked base station corresponding by described narrowband service community to institute State unified fusion core net and send community handover request, described community handover request include described terminal number Code, the SDP of described terminal, so that described unified fusion core net inquires about the calling of described active calls Context, and indicate described broadband trunked base station upper and lower according to described number, described SDP and described calling Literary composition is described active calls distributing radio resource.

24. terminals according to claim 13, it is characterised in that described acquisition module also includes:

3rd judging unit, is used for judging whether described active calls is that group is exhaled, the most described terminal Receive the broadcast message that described broadband service community sends；

4th judging unit, for judging whether described terminal participates in described group and exhale according to described broadcast message, It is wireless that the most then receive that broadband trunked base station corresponding to described broadband service community send described group is exhaled The information of resource.

25. 1 kinds of terminals, it is characterised in that including:

Transceiver, processor and bus；

Described transceiver, described processor is connected by described bus；

Described transceiver, such as gives an order for execution:

Participate in active calls in narrowband service community, described terminal takes in broadband service community and described arrowband All there is registration business community；Obtain that described calling module in described broadband service community participates in described currently The information of the Radio Resource of calling；

Described processor, such as gives an order for execution:

The information of the described Radio Resource acquired according to described acquisition module is from described narrowband service community Switch to described broadband service community and utilize described Radio Resource to continue described active calls.

26. 1 kinds of cell switching methods, it is characterised in that including:

Equipment of the core network receive terminal request be active calls in broadband service distributing wireless resources for cells, Described terminal participates in described active calls in narrowband service community, and described terminal is in described broadband service community And all there is registration described narrowband service community；

The information of described Radio Resource is sent to described terminal by described equipment of the core network, so that described end It is little that end can switch to described broadband service according to the information of described Radio Resource from described narrowband service community District continues described active calls.

27. methods according to claim 26, it is characterised in that described equipment of the core network is described During the broadband core networks that broadband service community belongs to, it is active calls that equipment of the core network receives the request of terminal Include in broadband service distributing wireless resources for cells:

Described broadband core networks receives described terminal please by the community switching that described broadband trunked base station sends Ask；

Described broadband core networks sends the first community to the narrowband core net that described narrowband service community belongs to and cuts Changing preparation request, described first community handover preparation request includes the number of described terminal, described terminal Session Description Protocol SDP, the wireless position identifier LAI of described narrowband service community and described arrowband clothes The Traffic Channel number of business community, so that described narrowband core net is according to described LAI and described Traffic Channel Number inquire about described active calls call context；

Described broadband core networks receives the second community handover preparation request that described narrowband core net sends, institute State the second community handover preparation request and carry described number, described SDP and described call context；

Described broadband core networks indicate described broadband trunked base station according to described number, described SDP and described Call context is described active calls distributing radio resource.

28. methods according to claim 26, it is characterised in that described equipment of the core network is described During the narrowband core net that narrowband service community belongs to, it is active calls that equipment of the core network receives the request of terminal Include in broadband service distributing wireless resources for cells:

Described narrowband core net receives described terminal by arrowband cluster base corresponding to described narrowband service community Stand send community handover request；

Described narrowband core net sends the 3rd community handover preparation request to described broadband core networks, and described the Three community handover preparation request carry the number of described terminal, the SDP of described terminal and described active calls Call context, described call context information is obtained, so that institute by the inquiry of described narrowband core net Stating broadband core networks indicates described broadband trunked base station according in described number, described SDP and described calling The most described active calls distributing radio resource.

29. methods according to claim 26, it is characterised in that described equipment of the core network is for unified During converged CN, it is that active calls distributes in broadband service community that equipment of the core network receives the request of terminal Radio Resource includes:

Described unified fusion core net receives described terminal by broadband collection corresponding to described broadband service community The community handover request that group base station sends, described community handover request includes the number of described terminal, described The SDP of terminal, the LAI of described narrowband service community and the Traffic Channel number of described narrowband service community；

Described unified fusion core net is inquired about according to described LAI and described Traffic Channel number and described is currently exhaled The call context cried；

Described unified fusion core net indicate described broadband trunked base station according to described number, described SDP and Described call context is described active calls distributing radio resource.

30. methods according to claim 26, it is characterised in that described equipment of the core network is for unified During converged CN, it is that active calls distributes in broadband service community that equipment of the core network receives the request of terminal Radio Resource includes:

Described unified fusion core net receives described terminal by arrowband collection corresponding to described narrowband service community The community handover request that group base station sends, described community handover request includes the number of described terminal, described The SDP of terminal；

Described unified fusion core net inquires about the call context of described active calls；

31. methods according to claim 26, it is characterised in that described equipment of the core network is described During the broadband core networks that broadband service community belongs to, it is active calls that equipment of the core network receives the request of terminal Include in broadband service distributing wireless resources for cells:

Described broadband core networks receives described terminal please by the community switching that described broadband trunked base station sends Asking, described community handover request includes the number of described terminal, the SDP of described terminal, and described arrowband takes The LAI of business community and the Traffic Channel number of described narrowband service community；

The narrowband core net that described broadband core networks belongs to described narrowband service community sends the 4th community and cuts Changing preparation request, described 4th community handover preparation request includes described number, described SDP, described LAI And described Traffic Channel number, so that described narrowband core net is believed according to described LAI and described business Taoist monastic name inquires about the calling identity ID of described active calls；

Described broadband core networks receives the 5th community handover preparation request that described narrowband core net sends, institute State the 5th community handover preparation request and carry described number, described SDP and described calling ID；

Described broadband core networks inquires about the call context of described active calls according to described calling ID；

32. methods according to claim 26, it is characterised in that described equipment of the core network is described During the narrowband core net that narrowband service community belongs to, it is active calls that equipment of the core network receives the request of terminal Include in broadband service distributing wireless resources for cells:

Described narrowband core net receives described terminal by arrowband cluster base corresponding to described narrowband service community Stand send community handover request, described community handover request carries the number of described terminal and described terminal SDP；

The broadband core networks that described narrowband core net belongs to described broadband service community sends the 6th community and cuts Changing preparation request, described 6th community handover preparation request carries described number, described SDP and described work as The calling identity ID of front calling, so that described broadband core networks indicates described broadband trunked base station root It is described active calls distributing radio resource according to described number, described SDP and described call context, institute Stating call context is that described broadband core networks obtains according to the described calling ID described active calls of inquiry.

33. methods according to claim 26, it is characterised in that described equipment of the core network is described During the broadband core networks that broadband service community belongs to, it is active calls that equipment of the core network receives the request of terminal Include in broadband service distributing wireless resources for cells:

Described broadband core networks receives described terminal by broadband cluster base corresponding to described broadband service community Stand send community handover request；

Narrowband core net that described broadband core networks belongs to described narrowband service community sends described 7th little District's handover preparation request, described seven cell handover preparation request includes the number of described terminal, described end The SDP of end, the LAI of described narrowband service community and the Traffic Channel number of described narrowband service community, So that the narrowband core net of described narrowband service community ownership is little to group ownership narrowband core net transmission the 8th District's handover preparation request, described 8th community handover preparation request includes described number, described SDP and exhaling Be ID, the narrowband core net that described calling ID is belonged to by described narrowband service community according to described LAI with And described Traffic Channel inquiry obtains；

Described broadband core networks receives the 9th community switching preparation of described group of ownership narrowband core net transmission please Asking, described 9th community handover preparation request includes described number, described SDP and call context, institute State call context to be obtained according to described calling ID inquiry by described group of ownership narrowband core net；

34. methods according to claim 26, it is characterised in that described equipment of the core network is described During the narrowband core net that narrowband service community belongs to, it is active calls that equipment of the core network receives the request of terminal Include in broadband service distributing wireless resources for cells:

It is little by described narrowband service that the narrowband core net of described narrowband service community ownership receives described terminal The community handover request that the arrowband trunked base station of district's ownership sends, described community handover request includes described end The number of end and the SDP of described terminal；

The calling ID of described active calls inquired about by the narrowband core net of described narrowband service community ownership；

The narrowband core net of described narrowband service community ownership sends the tenth community to group ownership narrowband core net Handover preparation request, described tenth community handover preparation request carries the number of described terminal, described terminal SDP and described calling ID so that described group ownership narrowband core net return to described broadband service community The broadband core networks belonged to sends the 11st community handover preparation request, and described 11st community switching prepares please Asking and include described number, described SDP and described call context, described call context is returned by described group Belonging to narrowband core net to obtain according to described calling ID inquiry, described number, on described SDP and described calling Hereafter described broadband trunked base station is indicated to be that described active calls distributes wireless money for described broadband core networks Source.

35. 1 kinds of equipments of the core network, it is characterised in that including:

Distribution module, is that active calls distributes wireless money in broadband service community for receiving the request of terminal Source, described terminal participates in described active calls in narrowband service community, and described terminal is in described broadband service All there is registration community and described narrowband service community；

Sending module, for the information of described Radio Resource is sent to described terminal, so that described end It is little that end can switch to described broadband service according to the information of described Radio Resource from described narrowband service community District continues described active calls.

36. according to the equipment of the core network described in claim 35, it is characterised in that described core net sets During for the broadband core networks belonged to for described broadband service community, described distribution module includes:

First receives unit, and the community sent by described broadband trunked base station for receiving described terminal is cut Change request；

First transmitting element is little for sending first to the narrowband core net of described narrowband service community ownership District's handover preparation request, described first community handover preparation request includes the number of described terminal, described end The Session Description Protocol SDP of end, the wireless position identifier LAI of described narrowband service community and described narrow With the Traffic Channel number of Serving cell, so that described narrowband core net is according to described LAI and described business Channel number inquires about the call context of described active calls；

Second receives unit, for receiving the second community handover preparation request that described narrowband core net sends, Described second community handover preparation request carries described number, described SDP and described call context；

First allocation unit, be used for indicating described broadband trunked base station according to described number, described SDP and Described call context is described active calls distributing radio resource.

37. according to the equipment of the core network described in claim 35, it is characterised in that described core net sets During for the narrowband core net belonged to for described narrowband service community, described distribution module includes:

3rd receives unit, for receiving described terminal by arrowband collection corresponding to described narrowband service community The community handover request that group base station sends；

Second transmitting element, for sending the 3rd community handover preparation request, institute to described broadband core networks State the 3rd community handover preparation request and carry the number of described terminal, the SDP of described terminal and described currently The call context of calling, described call context information is obtained by the inquiry of described narrowband core net, so that Described broadband core networks indicate described broadband trunked base station according to described number, described SDP and described exhale Call the most described active calls distributing radio resource.

38. according to the equipment of the core network described in claim 35, it is characterised in that described core net sets For during for unified fusion core net, described distribution module includes:

4th receives unit, for receiving described terminal by broadband collection corresponding to described broadband service community The community handover request that group base station sends, described community handover request includes the number of described terminal, described The SDP of terminal, the LAI of described narrowband service community and the Traffic Channel number of described narrowband service community；

First query unit, described currently exhales for inquiring about according to described LAI and described Traffic Channel number The call context cried；

Second allocation unit, be used for indicating described broadband trunked base station according to described number, described SDP and Described call context is described active calls distributing radio resource.

39. according to the equipment of the core network described in claim 35, it is characterised in that described core net sets For during for unified fusion core net, described distribution module includes:

5th receives unit, for receiving described terminal by arrowband collection corresponding to described narrowband service community The community handover request that group base station sends, described community handover request includes the number of described terminal, described The SDP of terminal；

Second query unit, for inquiring about the call context of described active calls；

3rd allocation unit, be used for indicating described broadband trunked base station according to described number, described SDP and Described call context is described active calls distributing radio resource.

40. according to the equipment of the core network described in claim 35, it is characterised in that described core net sets During for the broadband core networks belonged to for described broadband service community, described distribution module includes:

6th receives unit, and the community sent by described broadband trunked base station for receiving described terminal is cut Changing request, described community handover request includes the number of described terminal, and the SDP of described terminal is described narrow LAI with Serving cell and the Traffic Channel number of described narrowband service community；

3rd transmitting element is little for sending the 4th to the narrowband core net of described narrowband service community ownership District's handover preparation request, described 4th community handover preparation request includes described number, described SDP, institute State LAI and described Traffic Channel number, so that described narrowband core net is according to described LAI and described Traffic Channel number inquires about the calling identity ID of described active calls；

7th receives unit, for receiving the 5th community handover preparation request that described narrowband core net sends, Described 5th community handover preparation request carries described number, described SDP and described calling ID；

3rd query unit, for inquiring about the call context of described active calls according to described calling ID；

4th allocation unit, be used for indicating described broadband trunked base station according to described number, described SDP and Described call context is described active calls distributing radio resource.

41. according to the equipment of the core network described in claim 35, it is characterised in that described core net sets During for the narrowband core net belonged to for described narrowband service community, described distribution module includes:

8th receives unit, for receiving described terminal by arrowband collection corresponding to described narrowband service community The community handover request that group base station sends, described community handover request carries the number of described terminal and described The SDP of terminal；

4th transmitting element is little for sending the 6th to the broadband core networks of described broadband service community ownership District's handover preparation request, described 6th community handover preparation request carries described number, described SDP and institute State the calling identity ID of active calls, so that described broadband core networks indicates described broadband cluster base Standing according to described number, described SDP and described call context is described active calls distributing radio resource, Described call context is that described broadband core networks obtains according to the described calling ID described active calls of inquiry.

42. according to the equipment of the core network described in claim 35, it is characterised in that described core net sets During for the broadband core networks belonged to for described broadband service community, described distribution module includes:

9th receives unit, for receiving described terminal by broadband collection corresponding to described broadband service community The community handover request that group base station sends；

5th transmitting element, for sending described the to the narrowband core net of described narrowband service community ownership Seven cell handover preparation request, described seven cell handover preparation request includes the number of described terminal, institute State the SDP of terminal, the LAI of described narrowband service community and the Traffic Channel of described narrowband service community Number, so that the narrowband core net of described narrowband service community ownership sends the to group ownership narrowband core net Eight community handover preparation request, described 8th community handover preparation request includes described number, described SDP With calling ID, the narrowband core net that described calling ID is belonged to by described narrowband service community is according to described LAI And described Traffic Channel inquiry obtains；

Tenth receives unit, for receiving the 9th community switching standard that described group of ownership narrowband core net sends Standby request, described 9th community handover preparation request includes described number, described SDP and call context, Described call context is obtained according to described calling ID inquiry by described group of ownership narrowband core net；

5th allocation unit, be used for indicating described broadband trunked base station according to described number, described SDP and Described call context is described active calls distributing radio resource.

43. according to the equipment of the core network described in claim 35, it is characterised in that described core net sets During for the narrowband core net belonged to for described narrowband service community, described distribution module includes:

11st receives unit, for receiving the arrowband that described terminal is belonged to by described narrowband service community The community handover request that trunked base station sends, described community handover request includes number and the institute of described terminal State the SDP of terminal；

4th query unit, for inquiring about the calling ID of described active calls；

6th transmitting element, for sending the tenth community handover preparation request to group ownership narrowband core net, Described tenth community handover preparation request carries the number of described terminal, the SDP of described terminal and described exhale It is ID, so that the broadband core networks that described group of ownership narrowband core net belongs to described broadband service community Sending the 11st community handover preparation request, described 11st community handover preparation request includes described number, Described SDP and described call context, described call context by described group ownership narrowband core net according to Described calling ID inquiry obtains, described number, and described SDP and described call context are for described broadband Core net indicates described broadband trunked base station to be described active calls distributing radio resource.

44. 1 kinds of equipments 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, such as gives an order for execution: the request receiving terminal is that active calls takes in broadband Business distributing wireless resources for cells, described terminal participates in described active calls, described end in narrowband service community End is all registered in described broadband service community and narrowband service community；

Described transceiver, for perform given an order: processing module as described in by get as described in wireless money The information in source is sent to described terminal so that described terminal can according to the information of described Radio Resource from Described narrowband service community switches to described broadband service community and continues described active calls.