CN101547487B - Method and device for performing circuit domain services - Google Patents
Method and device for performing circuit domain services Download PDFInfo
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- CN101547487B CN101547487B CN2008100948761A CN200810094876A CN101547487B CN 101547487 B CN101547487 B CN 101547487B CN 2008100948761 A CN2008100948761 A CN 2008100948761A CN 200810094876 A CN200810094876 A CN 200810094876A CN 101547487 B CN101547487 B CN 101547487B
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Abstract
The invention discloses a method for performing circuit domain services. According to the method, after a circuit domain call request sent by a terminal in a network supporting packet domain is received, a candidate target cell supporting the circuit domain services is selected as a target cell according to type information of candidate target cells; or whether the target cell supports the circuit domain services or not is judged according to a switching response message returned by the target cell or an associative entity; therefore, the method avoids switching UE to a cell not supporting the circuit domain services, improves the switching efficiency and reduces the switching delay. The invention also discloses a device for the circuit domain services.
Description
Technical field
The present invention relates to mobile communication system, relate in particular to the technology of carrying out circuit domain business.
Background technology
Along with the continuous development of mobile network's technology and the maturation of IPization technology, to the speed of mobile communications network, access delay etc. are had higher requirement.In order to guarantee the competitiveness of 3GPP (third generation partner program) system in 10 years down to the time more of a specified duration, the work SAE/LTE of an access technology evolution (System Architecture Evolution/Long Term Evolution, System Architecture Evolution/Long Term Evolution) just carries out at the 3GPP organization internal.Most important several sections comprises in this class technology evolution: reduce time delay and reaction time, Gao Su user data rate more, the reduction of the power system capacity of enhancing and coverage and operator's integral body cost.In addition in order to make full use of the frequency of UMTS (Universal Mobile Telecommunications System), be HSPA (High Speed Packet Access Evolution, high-speed packet inserts) operator provides low complex degree, cheaply from the approach of HSPA to LTE (Long Term Evolution) smooth evolution, 3GPP has carried out strengthening (HSPA+) to UMTS HSPA system again simultaneously, in order to make it possess two-forty equally, performances such as low time delay, the HSPA+ system has adopted the flat architecture that is similar to the SAE/LTE system.
SAE/LTE, HSPA, HSPA+ and WiMAX (Worldwide Interoperability forMicrowave Access, micro-wave access global inter communication) network-covered is to some areas.For convenience of description, these are provided the network in PS (Packet Switching, packet switching) territory be referred to as the network of supporting packet domain (PS).For the network design in future, may exist support network and GERAN (the gsm wireless Access Network of the global evolution of support of enhanced transfer of data (EDGE) modulation technique), the UTRAN legacy networks such as (Universal Terrestrial Radio Access Networks) of PS and deposit in a very long time.
More present traditional circuit domain (CS) business, for example speech, short message service etc. remains user's business relatively more commonly used.In order to protect existing investment, make full use of Internet resources, operator wishes that the circuit domain that some employed circuit domain business of user that resides in the network cell of supporting PS is redirected to legacy network carries out.
Because the network of support PS such as existing HSPA+ is not supported circuit domain business, therefore, in the prior art, when resident user equipment (UE) to the network cell of supporting PS is initiated circuit domain call, need to be redirected or to switch to circuit domain.When the access network entity in the network of supporting packet domain (PS) is received the circuit domain call request of UE initiation, will carry out redirection process, UE is switched to the sub-district of supporting circuit domain business in other networks.In addition, the network of support packet domain such as HSPA+ in the future may be supported circuit domain business, but is based on needs such as sharing flow, also may need to be redirected or to switch to the sub-district of supporting circuit domain business in other networks.
The present inventor finds that the defective of prior art is that the access network entity of the network of support PS can't judge whether the Target cell in other networks supports circuit domain business when carrying out switch decision.Therefore, can cause the cell-of-origin UE might be switched to the Target cell of not supporting circuit domain business, thereby make UE can not normally carry out circuit domain call.
Summary of the invention
The embodiment of the invention provides a kind of method and apparatus that carries out circuit domain business, can make the UE in the network of supporting packet domain can switch to the sub-district of supporting circuit domain business quickly.
The method of carrying out circuit domain business that the embodiment of the invention provides comprises: receive the circuit domain call request that the terminal in the network of supporting packet domain sends; According to the type information of candidate target cells, select to support the candidate target cells of circuit domain business as Target cell; Terminal is switched to selected Target cell.
The another kind that the embodiment of the invention provides carries out the method for circuit domain business, comprising: receive the circuit domain call request that the terminal in the packet field network is initiated; Inform Target cell or intermediate entities circuit domain indication information, it is to be switched by the grouping that circuit domain call causes that described circuit domain indication information is used to indicate switching this time; When receiving the response message of the success that Target cell or intermediate entities return, terminal is switched to Target cell.
The embodiment of the invention provide another carry out the method for circuit domain business, comprising: receive the circuit domain call request that the terminal in the packet field network is initiated; Inform a plurality of candidate target cells circuit domain indication informations, it is to be switched by the grouping that circuit domain call causes that described circuit domain indication information is used to indicate switching this time, selects one as Target cell from the candidate target cells of response success message; Perhaps, inform intermediate entities circuit domain indication information, it is to be switched by the grouping that circuit domain call causes that described circuit domain indication information is used to indicate switching this time, and described intermediate entities selects a sub-district of supporting circuit domain business as Target cell from a plurality of candidate target cells according to the cell type information of being preserved; Terminal is switched to selected Target cell.
The embodiment of the invention also provides a kind of equipment that is used for circuit domain business, and this equipment is arranged in the network of supporting packet domain, comprising: receiving element is used for receiving the circuit domain call request that the terminal of the network of described support packet domain sends; Selected cell is used for selecting to support the candidate target cells of circuit domain business as Target cell according to the type information of candidate target cells; First switching treatmenting unit is used for terminal is switched to selected Target cell.
According to the embodiment of the invention, after being arranged in the terminal request of making a call of the network of supporting packet domain, can select to support the sub-district of circuit domain business as Target cell according to the type information of candidate target cells, perhaps, judge according to the response message that Target cell or intermediate entities are returned whether the Target cell that will cut supports circuit domain business, thereby avoided UE is switched to the sub-district of not supporting circuit domain business, improved the efficient of switching, reduced handover delay.
Description of drawings
Below with reference to accompanying drawings the present invention is made a more detailed description, in the accompanying drawing:
Fig. 1 is the schematic flow sheet that carries out circuit domain business according to the embodiment of the invention 1;
Fig. 2 is the schematic flow sheet that carries out circuit domain business according to the embodiment of the invention 2;
Fig. 3 is the schematic flow sheet that carries out circuit domain business according to the embodiment of the invention 3;
Fig. 4 is the schematic flow sheet that carries out circuit domain business according to the embodiment of the invention 7;
Fig. 5 and Fig. 6 are the device structure sketches that carries out circuit domain business according to the embodiment of the invention.
Embodiment
According to the embodiment of the invention, after access network entity in the network of support packet domain receives the circuit domain call request of terminal, according to the type information of candidate target cells, the sub-district of selecting to support circuit domain business switches to terminal selected Target cell then as Target cell.The cell type here comprises the sub-district of supporting circuit domain business and the sub-district of not supporting circuit domain business.The access network entity here can be the base station eNB of enhancing or the base station NB+ of evolution, also can be other entities with similar functions.
According to the embodiment of the invention, after access network entity in the network of support packet domain receives the circuit domain call request of terminal, can inform Target cell or intermediate entities circuit domain indication information, it is to be switched by the grouping that circuit domain call causes that this circuit domain indication information is used to indicate switching this time.When receiving the response message of the success that Target cell or intermediate entities return, terminal is switched to Target cell.Intermediate entities can be source MME (mobile management entity), also can be source SGSN (service GPRS (GPRS) support node), can also be target SGSN.
For making the purpose, technical solutions and advantages of the present invention clearer, various embodiments of the present invention are described in further detail below in conjunction with accompanying drawing.
In embodiment 1, UE is arranged in HSPA+ or SAE/LTE network, and access network entity is eNB/NB+.The flow process of carrying out circuit domain business as shown in Figure 1.
101, the UE in the HSPA+ network is to the territory call request of eNB/NB+ transtation mission circuit.
102, the eNB/NB+ of cell-of-origin initiates the measurement report order, requires UE to carry out different-frequency measure, to find optional UMTS sub-district, i.e. candidate target cells.The candidate target cells here is RNS (RNS).This step is an optional step.
103, eNB/NB+ selects to support the sub-district of circuit domain business as Target cell according to the candidate target cells type information of this locality configuration.The mode of eNB/NB+ configuration candidate target cells type information has multiple, for example, can dispose a tabulation, shows each candidate target cells and corresponding types thereof in the tabulation.
104, carry out follow-up switching flow, UE is switched to selected Target cell, set up circuit domain call.
In embodiment 2, the flow process of carrying out circuit domain business as shown in Figure 2.
201, candidate target cells RNS carries cell type information in the broadcast that sends to system.Can be all sub-districts, comprising the sub-district of HSPA+ sub-district and traditional support circuit domain business, all carry cell type information in broadcast, also can be only to be carried by certain sub-district, for example only carry, perhaps only carry by the sub-district of traditional support circuit domain business by the HSPA+ sub-district.The type information that carries can be a cell ID, is the sub-district of HSPA+ sub-district or traditional support circuit domain business with indication, also can be the sign that directly indicates whether to support circuit domain business.Candidate target cells also can make UE know cell type information by other approach.
202, the UE in the HSPA+ network initiates the circuit domain call request.
203, optional, the eNB/NB+ of cell-of-origin initiates the measurement report order, requires UE to carry out different-frequency measure and finds available candidate target cells; And request reports candidate target cells information.This reports request to send after the eNB/NB+ of cell-of-origin receives the measurement report of UE usually.After UE receives and reports request, will from broadcast or from the candidate target cells type information that other approach get access to, report.Preferably, the candidate target cells type information is carried in the message of reporting subdistrict information, reports the eNB/NB+ of cell-of-origin.Particularly, UE can increase an information word and usually carry the cell type indication in the message of reporting subdistrict information, also can only carry the cell ID of energy distinguishing cell type.Step 203 can be carried out before step 202.
It is to be noted, UE reports the candidate target cells type information to carry out in this step, also can find to carry out in (ANR) process, the candidate target cells type information is reported source network side (for example, the eNB/NB+ of cell-of-origin or operation and maintenance O﹠amp at the auxiliary automatic adjacent section of UE; The M management server), and with the candidate target cells type information be kept at the source network side.
204, the eNB/NB+ of cell-of-origin carries out switch decision, selects to support the sub-district of circuit domain business as Target cell.
205, carry out subsequent packets territory switching flow, UE is switched to selected Target cell, set up circuit domain call.
In embodiment 3, the flow process of carrying out circuit domain business as shown in Figure 3.
301, the UE in the network of support packet domain initiates the circuit domain call request.
302, the eNB/NB+ of cell-of-origin initiates the measurement report order, requires UE to carry out different-frequency measure and finds optional UMTS sub-district.This step is optional.
303 and 304, eNB/NB+ is requiring message or switching to require to carry the circuit domain indication information in the message to the redirected of source MME/SGSN transmission, and being used to indicate this time redirected or switching is the grouping switching that is caused by circuit domain call.Entrained circuit domain indication information is transmitted to target SGSN by source MME/SGSN, and then is transmitted to Target RNS.
The circuit domain indication information can be carried in the information element that sends to Target RNS.This information element can increase newly, also can add new value in original information element (for example Relocation Type, perhaps CNDomain Indicator).The information element that sends to Target RNS is transmitted by core net, but core net can not the changed information content, be similar to UE between two RNC when mobile, the source base station controller (RNC) that carries in the redirected relevant information is to the transparent vessel transparentcontainer of Target RNC, and this information can be called Source to Target Transparent Container.
This circuit domain Indication message also can be carried to be redirected and require in the message, sends to source MME or source SGSN, and source MME or source SGSN are again by informing target SGSN with the interface of target SGSN.Then, target SGSN is added corresponding indication information in sending to the redirect request message of Target RNS.The mode of adding can be newly-increased information element, the type that indication is redirected, and this newly-increased information element can be new type, also can be existing type, for example, two CN Domain Indicator be set to different values, a value representation CS territory, another value representation PS territory; Also can add new value in the original information element, for example the value with CN Domain Indicator is made as CS+PS, shows that the business in PS territory and CS territory needs to be redirected to Target cell simultaneously.Newly-increased information element also can be arranged to the Ignore type, to keep the support to legacy network.
305, after Target RNS is received redirect request message,, learn that this switching is to be caused by circuit domain call according to the circuit domain indication information that carries in this message.Target RNS is cut this sub-district according to oneself whether supporting the circuit domain business decision whether to accept this UE.If do not accept, then send the response message of failure to target SGSN, for example the redirect request failed message is redirected or handoff failure to show.If Target RNS supports circuit domain and load to allow, then send successful response message to target SGSN, for example the redirect request response message represents to allow incision.
306 and 307, target SGSN is with response message or the failed message notification source MME or the source SGSN of Target cell, source MME or source SGSN send redirect command or switching command or redirected failed message to source eNB/NB+ again, whether accept switching so that source eNB/NB+ knows Target cell.
If Target cell is not accepted switching, then can select new Target cell, switch again.If Target cell allows incision, then carry out follow-up switching flow.
In the present embodiment, the shortest in order to guarantee call delay, source eNB/NB+ also can select a plurality of candidate target cells in 303 and 304.In switching set-up procedure, send the redirected message and the redirect request message of requiring of carrying the circuit domain indication information to these several candidate target cells simultaneously, wherein, redirect request message can directly send to Target RNS by the IUR interface, also can transmit (the employing method is identical with 303 and 304) to Target RNS by core net.If candidate target cells is supported circuit domain business, then return the response success message.Source eNB/NB+ switches to the Target cell of response success message with UE, if more than a sub-district response success message, then select quality to switch preferably.
In embodiment 4, it is similar to Example 3 that UE carries out the flow process of circuit domain business.Different is, in 303, do not carry the circuit domain indication information, follow-up this indication information of also not transmitting, but the cell type information of in redirect response message (for example 305 redirect request response message), carrying Target RNS, and by target SGSN and source MME/SGSN with this information notification source eNB/NB+.The concrete mode of carrying also can be to increase corresponding IE in the target to source container information element or Target RNS is with in issuing the message of SGSN, is put at last by communication information between target SGSN and source MME/SGSN and source MME/SGSN and the eNB/NB+ and partly carries (being non-targetto source container part in these interface messages).Whether source eNB/NB+ switches to this sub-district with UE according to the cell type decision of Target RNS.
In embodiment 5, it is similar to Example 3 that UE carries out the flow process of circuit domain business.Different is to store the type information of Target cell among the MME/SGSN of source.Among the 303a, after source MME/SGSN receives the circuit domain indication information of source eNB/NB+ transmission, according to the Target cell type information of being stored, judge whether Target cell supports circuit domain business, if support, then continue redirection process,, then directly return redirected failed message to source eNB/NB+ if do not support.Preferably, in the present embodiment, source eNB/NB+ selects a plurality of candidate target cells when carrying out switch decision, and the address of these candidate target cells sent to source MME/SGSN, for example, the address list of candidate target cells is carried to switch requires in the message, send to source MME/SGSN.After source MME/SGSN receives the candidate target cells address, search own institute stored candidate Target cell type, therefrom select the sub-district that to support circuit domain business as Target cell.When a plurality of candidate target cells are all supported circuit domain business, can select a proper cell as Target cell according to other factors such as cell quality.
In embodiment 6, it is similar to Example 3 that UE carries out the flow process of circuit domain business.Different is to store the Target cell type information in the target SGSN.Among the 303b, after target SGSN receives the circuit domain indication information, according to the Target cell type information of being stored, judge whether Target cell supports circuit domain business,, then continue redirection process if support, if do not support, then return redirected failed message to source eNB/NB+.
In embodiment 7, the flow process of carrying out circuit domain business as shown in Figure 4.
401, the UE that resides in the HSPA+ sub-district sends the CS call request by initial direct-sending message to source eNB/NB+.Source eNB/NB+ is transmitted to MSC/VLR (mobile switching center) with this request.
402, source eNB/NB+ selects a UMTS sub-district, sends redirect request by the IUR interface between the RNS to this Target cell place RNS.Carry the circuit domain indication information in this request message, being used to indicate this time redirected or switching is the grouping switching that is caused by circuit domain call.The method of indication, the embodiment of similar front, promptly increasing a new information element indicates, perhaps in existing information element (for example CN domain indicator or relocation Cause) new value is set, for example the value of CNdomain indicator is set to PS+CS or similar value.Because CS territory and PS territory redirect request are notified to Target RNS in the method in same message, therefore this message may need to carry simultaneously CN (core net) address in PS territory and the CN address in CS territory, for example CS Global CN-ID, CS ULGTP Tunnel Endpoint, PS Global CN-ID or PS UL GTP Tunnel Endpoint.In same message, CS and PS are indicated, for two message of independent initiation, can reduce signaling.
403: after Target RNS is received request,, learn that this switching is to be caused by circuit domain call according to the circuit domain indication information that carries in this message.Target RNS is cut this sub-district according to oneself whether supporting the circuit domain business decision whether to accept this UE.If do not accept, just,, then respond the message of a success if receive to failure of source eNB/NB+ response.
404～410, after source eNB/NB+ receives the response message of success, carry out the flow process that normal switching flow and CS call out.
In 403, when Target RNS is supported circuit domain business, also can not respond successful message, directly carry out follow-up switching flow.
In the present embodiment, after source eNB/NB+ receives the CS call request, also can be this request be transmitted, but directly carry out redirection process, the call request (being initial direct-sending message) that UE is sent to MSC/VLR is placed in the redirect request message and sends to Target cell.
In embodiment 8, it is similar to Example 6 that UE carries out the flow process of circuit domain business.Different is, does not carry the circuit domain indication information in step 402, does not follow-uply also transmit this indication information, but carries the cell type information of Target RNS in 403 redirect response message, with notification source eNB/NB+.Whether source eNB/NB+ switches to this sub-district with UE according to the cell type decision of Target RNS.
One of ordinary skill in the art will appreciate that, all or part of step in the various embodiments described above can realize by the relevant hardware of program command, described program can be stored in the computer read/write memory medium, and described storage medium can be ROM/RAM, magnetic disc, CD etc.
Though will also be appreciated that in the above-mentioned explanation, for ease of understanding, the step of method has been adopted the succession description, should be pointed out that the strictness of restriction do not do to(for) the order of above-mentioned steps.
In embodiment 8, a kind of equipment that is used for circuit domain business as shown in Figure 5.This equipment is arranged in the network of supporting packet domain, comprises receiving element 501, selected cell 503 and first switching treatmenting unit 504.Wherein, receiving element 501 is used for receiving the circuit domain call request that the terminal of the network of supporting packet domain sends.Selected cell 503 is used for selecting to support the candidate target cells of circuit domain business as Target cell according to the class fresh information of candidate target cells.First switching treatmenting unit is used for UE is switched to selected Target cell.This equipment can also comprise memory cell 502, is used to store the type information of candidate target cells.The source of the type information can be this equipment oneself configuration; Also can be to report after knowing by terminal, for example from the broadcast of candidate target cells, know the type information of candidate target cells, and pass through the information reporting of reporting subdistrict information; Can also be to inform by the redirect response related news by candidate target cells.
In embodiment 9, a kind of equipment that is used for circuit domain business as shown in Figure 6.This equipment is arranged in the network of supporting packet domain, comprises receiving element 601, transmitting element 602 and second switching treatmenting unit 603.Wherein, receiving element 601 is used for receiving the circuit domain call request that the terminal of the network of supporting packet domain sends, transmitting element 602 is used for transtation mission circuit territory indication information, this circuit domain indication information can be carried in the redirect request message and send to Target cell, also can be carried to be redirected to require message or switching to require to send in the message intermediate entities.Second switching treatmenting unit 603 is used for when receiving element 601 receives the response message of the success that Target cell or intermediate entities return terminal being switched to Target cell.
Be understandable that, structure shown in the accompanying drawing only is schematic, the presentation logic structure, the wherein said unit that shows as separating component may or may not be physically to separate, the parts that show as the unit may be or may not be physical locations, promptly can be positioned at a place, for example source eNB/NB+ perhaps is distributed on several network element.
Accompanying drawing and associated description are not to be used to limit protection scope of the present invention just for principle of the present invention is described.For example, the message name in the various embodiments of the present invention can change to some extent according to the difference of network, and some message also can be omitted.Therefore, all any modifications of being done within the spirit and principles in the present invention, be equal to replacement, improvement etc., all be included in protection scope of the present invention.
Claims (13)
1. a method of carrying out circuit domain business is characterized in that, comprising:
Receive the circuit domain call request that the terminal in the network of supporting packet domain sends;
Obtain the type information of candidate target cells, described type information comprises the indication of whether supporting circuit domain business;
If the type information of described candidate target cells indicates described candidate target cells to support circuit domain business, select described candidate target cells as Target cell;
Terminal is switched to selected Target cell.
2. method according to claim 1 is characterized in that, the type of described candidate target cells comprises the sub-district of supporting circuit domain business and the sub-district of not supporting circuit domain business.
3. method according to claim 1 and 2 is characterized in that,
The type of described candidate target cells is disposed in this locality by the access network entity in the network of supporting packet domain; Perhaps
Know the candidate target cells type information by terminal, and the information that will know reports the access network entity in the network of supporting packet domain; Perhaps
In redirect response message, the cell type information notification is supported the access network entity in the network of packet domain by candidate target cells.
4. method according to claim 3 is characterized in that, described terminal is known the candidate target cells type information from the broadcast of candidate target cells, and the information that will know is carried in the message of reporting subdistrict information and reports described access network entity.
5. a method of carrying out circuit domain business is characterized in that, comprising:
Receive the circuit domain call request that the terminal in the network of supporting packet domain is initiated;
Inform Target cell or intermediate entities circuit domain indication information, it is to be switched by the grouping that circuit domain call causes that described circuit domain indication information is used to indicate switching this time;
When receiving the response message of the success that Target cell or intermediate entities return, terminal is switched to Target cell.
6. method according to claim 5 is characterized in that, described circuit domain indication information is carried in the redirect request message and sends to Target cell; Perhaps, be carried to be redirected and require message or switching to require to send in the message intermediate entities.
7. method according to claim 5 is characterized in that, described intermediate entities comprises source mobile management entity MME, source Serving GPRS Support Node SGSN or target SGSN.
8. method according to claim 5 is characterized in that, when receiving the response message of the failure that Target cell or intermediate entities return, selects new Target cell to switch.
9. method according to claim 5 is characterized in that described intermediate entities is preserved cell type information.
10. according to claim 5,6,7,8 or 9 described methods, it is characterized in that,
After described intermediate entities receives the circuit domain indication information,, judge whether Target cell supports circuit domain business,, then return the response message of failure, if support the response message that then returns success if do not support according to the Target cell type information of being stored; Perhaps
After described Target cell receives the circuit domain indication information, when oneself cell type when not supporting the sub-district of circuit domain business, return the response message of failure, when own cell type during for the sub-district of support circuit domain business, the response message that returns success.
11. a method of carrying out circuit domain business is characterized in that, comprising:
Receive the circuit domain call request that the terminal in the network of supporting packet domain is initiated;
Inform a plurality of candidate target cells circuit domain indication informations, it is to be switched by the grouping that circuit domain call causes that described circuit domain indication information is used to indicate switching this time, selects one as Target cell from the candidate target cells of response success message; Perhaps, inform intermediate entities circuit domain indication information, it is to be switched by the grouping that circuit domain call causes that described circuit domain indication information is used to indicate switching this time, described intermediate entities is obtained the type information of candidate target cells according to the cell type information of preserving, described type information comprises the indication of whether supporting circuit domain business, if the type information of described candidate target cells indicates described candidate target cells to support circuit domain business, described intermediate entities selects a sub-district of supporting circuit domain business as Target cell;
Terminal is switched to selected Target cell.
12. an equipment that is used for circuit domain business, this equipment are arranged in the network of supporting packet domain, it is characterized in that, comprising:
Receiving element is used for receiving the circuit domain call request that the terminal of the network of described support packet domain sends;
Selected cell, be used to obtain the type information of candidate target cells, described type information comprises the indication of whether supporting circuit domain business, if the type information of described candidate target cells indicates described candidate target cells to support circuit domain business, select to support the described candidate target cells of circuit domain business as Target cell;
First switching treatmenting unit is used for terminal is switched to selected Target cell.
13. equipment according to claim 12 is characterized in that, this equipment can also comprise memory cell, is used to store the type information of candidate target cells.
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| CN103200516B (en) * | 2013-03-25 | 2016-11-02 | 华为终端有限公司 | Realize method and the user equipment of note/voice calling service |
| CN105264960B (en) * | 2013-09-26 | 2019-10-01 | 华为技术有限公司 | Ability matching process, apparatus and system |
| WO2015042831A1 (en) * | 2013-09-26 | 2015-04-02 | 华为技术有限公司 | Capability matching method, device, and system |
| CN105049617B (en) * | 2015-07-01 | 2018-10-16 | 中科创达软件股份有限公司 | A kind of mobile communication terminal method for switching network, system and mobile communication terminal |
| US10165474B2 (en) * | 2016-07-01 | 2018-12-25 | Mediatek Inc. | Volunteer domain change of existed service for supporting multiple services with service continuity |
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