CN100473204C - TDCDMA to other network basic handover cancelling method at HLR fusion mode - Google Patents
TDCDMA to other network basic handover cancelling method at HLR fusion mode Download PDFInfo
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- CN100473204C CN100473204C CNB2007100056810A CN200710005681A CN100473204C CN 100473204 C CN100473204 C CN 100473204C CN B2007100056810 A CNB2007100056810 A CN B2007100056810A CN 200710005681 A CN200710005681 A CN 200710005681A CN 100473204 C CN100473204 C CN 100473204C
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Abstract
The method includes steps: dual modes, dual stand by mobile terminal builds TDCDMA network call; RNC determines that the terminal needs to switch to network A, and sends message to inform TDMSC switching, and makes mark ID be as a switch to network A; TDMSC sends query to HLR to obtain roam number of the terminal in network A; using roam number in network A as called number, TDMSC initiates call to network A, and marks ID of initiated call for switching to network A; in procedure for processing call by network A, discovering that TDCDMA network signal is recovered already, RNC informs TDMSC to cancel switching; TDMSC releases call to network A, and returns response of canceling switching to RNC, and then terminal continues call under TDCDMA network. In the invention, under condition of TDCDMA signal fading, dual modes, dual stand by mobile terminal can switch to other network, and cancel switching when signal is recovered.
Description
Technical field
The present invention relates to the method that terminal inserts in the communication field, relate in particular to TDCDMA to the method for switching between other network.
Background technology
TDCDMA is as the third generation mobile technology, and at the initial stage of networking, with ripe GSM network and deposit, the TDCDMA network coverage tends to show as the isolated island in the GSM network with a large amount of.Therefore, realize the switching of TDCDMA, to one of key factor of the service quality of raising system to gsm system.
According to the agreement regulation, dual-mode handset should have the different system cell signal quality of measurement and finish the ability of switching between system by reorientation standard agreement process between system.But, a kind of TDCDMA that exists and GSM dual-mode and dual-idle mobile phone can not accomplish to detect the signal quality of neighboring GSM cell when using TDCDMA (TD-CDMA Time Division-Code Division Multiple Access access) system at present, can not finish between system by repositioning process between the system of agreement regulation to switch.And this type of mobile phone is incited somebody to action long-term existence afterwards as a kind of special dual-mode and dual-idle mobile phone.
Like this, this kind double-module double-standby terminal can't automatically switch to the GSM network after moving to the zone that does not have the TDCDMA network coverage, uses the GSM resource to proceed conversation.Except that GSM net, the TDCDMA network to other network such as CDMA, WCDMA between also have similar problem.
Summary of the invention
The technical problem to be solved in the present invention provides the method to other network basic handover cancelling of TDCDMA under a kind of HLR amalgamation mode, make and to finish the double-module double-standby terminal that switches between system under the situation of TDCDMA network signal decay by agreement, can switch to other network, and can when signal recovers, cancel switching.
In order to solve the problems of the technologies described above, the invention provides the method for TDCDMA under a kind of HLR amalgamation mode to other network basic handover cancelling, may further comprise the steps:
(a) double-mode double-standby mobile terminal of TDCDMA and another network A is set up the calling of TDCDMA net, radio network controller (RNC) judges that this portable terminal need switch to network A, then send out message informing TDMSC and switch, in message, identify this and switch to the switching of network A;
(b) described TDMSC obtains the roaming number of this portable terminal in network A to the HLR inquiry;
(c) described TDMSC uses the roaming number of described network A to be called number, is initiated to the calling of network A, and identifies this calling for switch the calling of being initiated to network A;
(d) in the network A procedure for processing call, described RNC finds that the signal of TDCDMA network recovers, and sends the described TDMSC cancellation of message informing and switches;
(e) described TDMSC is discharged into the calling of network A, returns handover cancelling to described RNC and replys, and portable terminal continues to call out under the TDCDMA network.
Further, said method also can have following characteristics:
RNC analyzes the examining report of portable terminal at the TDCDMA network in the step (a), if the signal level of terminal in all sub-districts of TDCDMA all is lower than certain set point, thinks that then terminal need switch to network A.
Further, said method also can have following characteristics:
The described portable terminal of step (a) is in the process of setting up the calling of TDCDMA net, and this terminal of notice radio network controller (RNC) has the network A of responding and switches the calling of being initiated, and finishes the ability of switching from TDCDMA to the network A;
After described RNC judges that described portable terminal need switch to network A, judge again whether this terminal has described switching capability, as have, send RELOCATION REQUEST message again and notify described TDMSC to switch.
Further, said method also can have following characteristics: step (b) further can be divided into following steps:
(b1) described TDMSC sends the routing iinformation request to HLR, and number wherein is the TDCDMA network number of terminal, and indicates the route requests that this time switched for network;
(b2) described HLR carries out the route processing, according to the record of the SIM card that this terminal is used of preserving in the network A registration, determines this terminal at the VLR that network A inserted, and sends the message that Provides Roaming Number to this VLR;
(b3) described VLR is returned as the network A roaming number of described terminal distribution to described HLR;
(b4) described HLR turns back to described TDMSC with this roaming number.
Further, said method also can have following characteristics:
Being that the NPI field of checking numbers is expanded in the step (b1), is the route requests that network switches to indicate this time.
Further, said method also can have following characteristics:
In the step (c), be calling number by described calling to be set to operator be this type of special service number that switches regulation, identify the calling of this callings for being initiated to the network A switching.
Further, said method also can have following characteristics:
Described network A is GSM network, cdma network or WCDMA network.
Further, said method also can have following characteristics:
Described mobile terminal user is in GSM net contracted CLIP service and the signatory slow forward-shifting service and the affair of being transferred to civilian work in the early time, in the TD net caller number restriction business of contracting.
Further, said method also can have following characteristics:
RNC described in the step (d) sends reorientation cancellation message to described TDMSC, notifies described TDMSC cancellation to switch.
The present invention proposes the method for TDCDMA to other network basic handover cancelling, makes user signatory in merging HLR under the situation of TDCDMA network signal decay, can switch to other network such as GSM net, and can cancel switching when the TDCDMA network signal recovers.Further, this method does not need TDCDMA and other network exchange wireless messages, and what other network was finished is normal call function, so do not need other network to upgrade, is convenient to dispose and implement.This method can use specific calling number sign to switch, and portable terminal is according to number switching channels automatically, and the user can not perceive the carrying out of switching.
Description of drawings
Figure 1A and Figure 1B are respectively that the present invention uses and merges HLR, realize that TDCDMA switches system construction drawing with follow-up switching substantially to GSM.
Fig. 2 is that the present invention uses fusion HLR, realizes the system flow chart that TDCDMA switches substantially to GSM.
Fig. 3 is that the present invention uses fusion HLR, realizes the system flow chart of TDCDMA to the follow-up switching of GSM.
Fig. 4 is that the present invention uses fusion HLR, realizes the system flow chart of TDCDMA to the GSM basic handover cancelling.
Fig. 5 is that the present invention uses fusion HLR, realizes the system flow chart of TDCDMA to the follow-up handover cancelling of GSM.
Embodiment
With the switch to example of TDCDMA to the GSM net, the enforcement to technical scheme is described in further detail in conjunction with the accompanying drawings below.
Figure 1A shows under the HLR amalgamation mode, realizes that TDCDMA to the system configuration that GSM switches substantially, comprises portable terminal, TDCDMA network and GSM network.Wherein:
GSM network 15 can be realized the access and the call treatment of portable terminal GSM part.
Comprise in the TDCDMA network:
Radio network controller (RNC) 12 is used to manage the wireless connections of TDCDMA network, and portable terminal TD part inserts under RNC;
TDMSC (time-division mobile switching centre) 13 links to each other with GSM network gateway exchange with RNC, HLR, is used for realizing calling out and switching control function; And
Homing user position register (HLR), link to each other with the GSM net with TD-MSC, be applied to TDCDMA and GSM network simultaneously, deposit the CAMEL-Subscription-Information of mode mobile terminal TDCDMA network identity card and the CAMEL-Subscription-Information of portable terminal GSM network identity card, comprise the GSM number.Store the record of SIM card that terminal is used among the HLR simultaneously, and be associated with VLR (VLR Visitor Location Register) number at SIM card place at the GSM network registry.
Portable terminal 11 is supported TDCDMA pattern and GSM pattern, can standby simultaneously under two kinds of patterns.Two tag cards are arranged in the portable terminal 11, and the user ID card for the TDCDMA network is a usim card, is used for the network service with TDCDMA; One is that the user ID card of GSM network is a SIM card, is used for the network service with GSM.In addition, mobile phone users is in GSM net contracted CLIP service and the signatory slow forward-shifting service and the affair of being transferred to civilian work in the early time, in the TD net caller number restriction business of contracting.
Figure 1B shows under the HLR amalgamation mode, realizes the system configuration of TDCDMA to the follow-up switching of GSM.Wherein show the TDMSC A that terminal is inserted before switching and switch the TDMSC B that the back is inserted.
Fig. 2 is the flow chart that present embodiment TDCDMA switches substantially to GSM.Under the initial state of switching, portable terminal (also abbreviating terminal as) inserts under TDCDMA exchange TDMSC, and through switching, terminal inserts under GSM exchange, and continues current calling.Concrete steps are as follows:
Portable terminal can be described terminal and support switching mode described herein in physical capability.Certainly RNC and terminal also can exchange this information by other process.
Switching capability as described in not having as terminal, then RNC does not send re-positioning request to TDMSC.
After the calling number that step 210, portable terminal identify this calling is described special service number, inserts automatically and call out, return ALERTING message, the GMS network sends Address Complete Message to TDMSC;
Before the switching, portable terminal is connected the TD voice-over-net signal of decoding with the terminal microphone.After the switching, terminal transfers the voice signal of playing the GSM network to.
TDMSC is before receiving the replying of GSM network, and the GSM network that do not continue prevents that to the speech channel of local terminal the ring back tone of GSM network from disturbing conversation.
After switching was finished, originally the connection to terminal also can be initiated to discharge by RNC in the TDCDMA network.
The GSM network can carry out special charging to this calling according to the calling number of described calling.
Fig. 3 is the flow chart of TDCDMA of the present invention to the follow-up switching of GSM.At this moment portable terminal switches to TDMSC B from TDMSC A, calls out and continues, and still along with the decay of TDMSC B network signal, the user begins the follow-up switching to the GSM network.Concrete steps are as follows:
After portable terminal switches to TDMSC B from TDMSC A, RNC---" TDMSC the B---" TDMSCA under the access path of portable terminal and opposite end is: portable terminal---" the TDMSC B---" opposite end.
Step 309 after the GSM network is received described calling, is initiated to the paging of portable terminal, and the GSM network portion of portable terminal is returned page response
After the calling number that step 311, portable terminal identify this calling is described special service number, inserts automatically and call out, return ALERTING message, the GMS network sends Address Complete Message to TDMSC A;
After switching to GSM net, the access path between portable terminal and the opposite end becomes: portable terminal---" GSM net---" TDMSC A---" opposite end.
Fig. 4 is the flow chart of TDCDMA of the present invention to the GSM basic handover cancelling.In GSM net handoff procedure,, reside in the TDCDMA network because the recovery of portable terminal TDCDMA network signal is cancelled to the switching of GSM network.Concrete steps are as follows:
The process that the GSM network processes is called out can be with reference to the flow process among Fig. 2.It is the final step of handoff procedure that portable terminal switches internal channel, and after portable terminal switched internal channel, TDMSCA just received the response message of GSM network at once, and discharges RNC.Internal channel has not been switched to the situation that the GSM net is cancelled switching again so portable terminal can not occur.
Fig. 5 is the flow chart of TDCDMA of the present invention to the follow-up handover cancelling of GSM.Take place follow-uply after the switching of GSM, portable terminal resides in the network under the TDMSC B because the recovery of TDCDMA signal is cancelled to the switching of GSM network.Concrete steps are as follows:
As from the foregoing, the present invention has realized the handoff functionality of TDCDMA network to the GSM network under to the situation that existing gsm system is changed and influence is minimum.Make the portable terminal of double-module double-standby mode after roaming into outside the TDCDMA network, to continue to call out by the GSM network.
It should be noted that in addition that in other embodiments the said GSM network can be the mobile communication network of other types also, such as CDMA, WCDMA network etc.Can know that from principle of the present invention handling process in these embodiments is consistent with the foregoing description.
Claims (9)
1, TDCDMA may further comprise the steps to the method for other network basic handover cancelling under a kind of HLR amalgamation mode:
(a) double-mode double-standby mobile terminal of TDCDMA and another network A is set up the calling of TDCDMA net, radio network controller (RNC) judges that this portable terminal need switch to network A, then send out message informing TDMSC and switch, in message, identify this and switch to the switching of network A;
(b) described TDMSC obtains the roaming number of this portable terminal in network A to the HLR inquiry;
(c) described TDMSC uses the roaming number of described network A to be called number, is initiated to the calling of network A, and identifies this calling for switch the calling of being initiated to network A;
(d) in the network A procedure for processing call, described RNC finds that the signal of TDCDMA network recovers, and sends the described TDMSC cancellation of message informing and switches;
(e) described TDMSC is discharged into the calling of network A, returns handover cancelling to described RNC and replys, and portable terminal continues to call out under the TDCDMA network.
2, the method for claim 1 is characterized in that:
RNC analyzes the examining report of portable terminal at the TDCDMA network in the step (a), if the signal level of terminal in all sub-districts of TDCDMA all is lower than certain set point, thinks that then terminal need switch to network A.
3, the method for claim 1 is characterized in that:
The described portable terminal of step (a) is in the process of setting up the calling of TDCDMA net, and this terminal of notice radio network controller (RNC) has the network A of responding and switches the calling of being initiated, and finishes the ability of switching from TDCDMA to the network A;
After described RNC judges that described portable terminal need switch to network A, judge again whether this terminal has described switching capability, as have, send RELOCATION REQUEST message again and notify described TDMSC to switch.
4, the method for claim 1 is characterized in that: step (b) further can be divided into following steps:
(b1) described TDMSC sends the routing iinformation request to HLR, and number wherein is the TDCDMA network number of terminal, and indicates the route requests that this time switched for network;
(b2) described HLR carries out the route processing, according to the record of the SIM card that this terminal is used of preserving in the network A registration, determines this terminal at the VLR that network A inserted, and sends the message that Provides Roaming Number to this VLR;
(b3) described VLR is returned as the network A roaming number of described terminal distribution to described HLR;
(b4) described HLR turns back to described TDMSC with this roaming number.
5, method as claimed in claim 4 is characterized in that:
Being that the NPI field of checking numbers is expanded in the step (b1), is the route requests that network switches to indicate this time.
6, the method for claim 1 is characterized in that:
In the step (c), be calling number by described calling to be set to operator be this type of special service number that switches regulation, identify the calling of this callings for being initiated to the network A switching.
7, the method for claim 1 is characterized in that:
Described network A is GSM network, cdma network or WCDMA network.
8, the method for claim 1 is characterized in that:
Described mobile terminal user is in GSM net contracted CLIP service and the signatory slow forward-shifting service and the affair of being transferred to civilian work in the early time, in the TD net caller number restriction business of contracting.
9, the method for claim 1 is characterized in that:
RNC described in the step (d) sends reorientation cancellation message to described TDMSC, notifies described TDMSC cancellation to switch.
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CNB2007100056810A CN100473204C (en) | 2007-03-13 | 2007-03-13 | TDCDMA to other network basic handover cancelling method at HLR fusion mode |
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CN102075942A (en) * | 2009-11-25 | 2011-05-25 | 中国移动通信集团福建有限公司 | 2G and 3G combination networking mobile communication system and networking method |
CN117545031A (en) * | 2020-01-20 | 2024-02-09 | 维沃移动通信有限公司 | Message notification method, terminal and network equipment |
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