CN100384188C - Method and system for realizing bidirectional alternative operation of circuit field and group field - Google Patents
Method and system for realizing bidirectional alternative operation of circuit field and group field Download PDFInfo
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- CN100384188C CN100384188C CNB2005100075155A CN200510007515A CN100384188C CN 100384188 C CN100384188 C CN 100384188C CN B2005100075155 A CNB2005100075155 A CN B2005100075155A CN 200510007515 A CN200510007515 A CN 200510007515A CN 100384188 C CN100384188 C CN 100384188C
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1016—IP multimedia subsystem [IMS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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Abstract
The present invention discloses a method for realizing the services of a packet switched domain through a terminal which carries out services in a circuit switched domain, and also discloses a method for realizing the services of a circuit switched domain through a terminal which carries out services in a packet switched domain. A mobile switching function entity is added by the present invention and is respectively connected with a circuit switched domain network and a packet switched domain network, so that control signaling and data between the circuit switched domain and the packet switched domain can be forwarded. In the circuit switched domain, the function of the mobile switching function entity is identical with a common MSC, and in the packet switched domain, the function of the mobile switching function entity is identical with the function of an AS and a BCCF/MGW which can terminate calls. Simultaneously, the present invention also provides a system for realizing the bidirectional interoperation between the circuit switched domain and the packet switched domain. The present invention does not need to modify the existing circuit switched domain and access networks to improve, and the function of the interoperation between the two networks, namely calls from the circuit switched domain are received by the packet network, and calls from the packet switched domain are received by the circuit switched domain network.
Description
Technical field
The present invention relates to the cdma2000 technical field, be meant a kind of method and system that in cdma2000, realize circuit domain and packet domain bidirectional alternative operation especially, realize that circuit domain and packet domain bidirectional alternative operation are meant the method for carrying out professional terminal realization packet switch domain service in circuit domain, and in packet domain, carry out the method that professional terminal realizes circuit domain business.
Background technology
Referring to shown in Figure 2, cdma2000 1x network provides circuit domain 111,112 two kinds of business of packet domain.Wherein, circuit domain 111 comprises SMC 104, HLR 103, MSC/VLR 102, BSS 101, and packet domain 112 comprises IMS SMC 109, HSS 108, S-CSCF 107.
If portable terminal (MS) carries out business in packet domain, circuit-domain network may exist the system message of this MS or beep-page message etc., otherwise, if also having packet traffic flows in circuit domain, MS need be handed down to MS.But, in above-mentioned network frame, when portable terminal carries out business in packet domain, when promptly being in the PDP state of activation, under the situation of MS own resource abundance, MS can listen to the system message or the beep-page message of circuit-domain network, and, if MS own resource deficiency, could be owing to carrying out video (VT) business, system message and beep-page message that can't the monitoring circuit territory may appear because the own resource deficiency.But, when in the user is in circuit domain, carrying out business, but can't monitor packet field network.Therefore, may be owing to monitoring the business of having missed packet domain that makes.
Certainly, in order to realize interoperability, the cross-paging model has been proposed in succession and improve after the cross-paging model, such as, in the cross-paging model after improvement, be to utilize in MSC, further to increase IWSFunctin, the portable terminal that utilizes this function to make to be in activated state in the packet domain can receive the system message and the beep-page message of circuit domain, but can't make the terminal of carrying out business in the circuit domain carry out packet switch domain service, and this mode also needs existing Access Network and circuit-domain network are made improvements, and implements also more complicated.
Summary of the invention
In view of this, first purpose of the present invention is to provide a kind of method that professional terminal realizes packet switch domain service of carrying out in circuit domain, make the terminal of carrying out business in circuit domain can carry out packet switch domain service.
Second purpose of the present invention is to provide a kind of method that professional terminal realizes circuit domain business of carrying out in packet domain, this method does not need conventional network equipment is improved, and can make the terminal receiving circuit domain system message and the beep-page message that are in activated state in packet domain.
The 3rd purpose of the present invention provides a kind of system that realizes circuit domain and packet domain bidirectional alternative operation, make it not need conventional network equipment is improved, can in packet domain, be in the terminal receiving circuit domain system message and the beep-page message of activated state, and in circuit domain, carry out professional terminal and can carry out packet switch domain service.
In order to reach above-mentioned first purpose, the invention provides a kind of method that professional terminal realizes packet switch domain service of in circuit domain, carrying out, this method comprises:
Further increase mobile function of exchange entity in the cdma20001x system, connecting circuit territory and packet field network are used for chain of command data and user face data between repeat circuit territory and the packet domain respectively, and this method is further comprising the steps of:
When a. the Business Stream that defines packet domain as S-CSCF is handed down to mobile terminal MS, and determine that this MS does not carry out business in packet domain, S-CSCF triggers call request to described mobile function of exchange entity, notify this MS to return packet domain by described mobile function of exchange entity and carry out business, or, send packet domain by described mobile function of exchange entity to this MS and call out.
Before step a, further comprise:
A1, in circuit domain, carry out professional mobile terminal MS and send SMS message to described mobile function of exchange entity, represent that this MS is just carrying out business in circuit domain by short message service center;
After a2, described mobile function of exchange entity were received this short message, the trigger for download device was to the S-CSCF of packet domain.
The destination Mobile Station International ISDN Number of short message described in the step a1 is the address of described mobile function of exchange entity, or, the character string of the described mobile function of exchange entity of unique identification.
Short message service center described in the step a2 is specifically designed to the short message of transmitting between mobile switching centre and the described mobile function of exchange entity.
Described short message service center comprises circuit domain short message service center and packet domain multimedia short message center, and MS described in the step a1 comprises to the step that described mobile function of exchange entity sends SMS message by short message service center:
A11, this MS send SMS message to the circuit domain sms center, utilize this note to represent that this MS carries out business in circuit domain, and wherein, the destination Mobile Station International ISDN Number of this short message is the address of described mobile function of exchange entity;
A12, circuit domain sms center are forwarded to packet domain multimedia short message center with this short message;
A13, packet domain multimedia short message center are transmitted to this short message described mobile function of exchange entity again.
The multimedia short message of packet domain described in step a13 center sends to described mobile function of exchange entity by customization time mechanism SUBSCRIB with this short message.
In order to realize above-mentioned another purpose, the invention provides a kind of method that professional terminal realizes circuit domain business of in packet domain, carrying out, this method comprises:
Further increase mobile function of exchange entity in the cdma20001x system, connecting circuit territory and packet field network are used for chain of command data and user face data between repeat circuit territory and the packet domain respectively, and this method is further comprising the steps of:
A. be in the packet domain state of activation MS determine can't monitoring circuit territory network after, self be in the packet domain by the attaching position register registration of described mobile function of exchange entity in circuit domain;
B. when the moving exchanging center MSC in the circuit domain defines system message or beep-page message and is handed down to this MS, MSC sends to this MS by described mobile function of exchange entity with system message or beep-page message, or MSC notifies this MS return circuit territory receiving system message or beep-page message by described mobile function of exchange entity.
A kind of system that realizes circuit domain and packet domain bidirectional alternative operation provided by the invention is applied in the cdma20001x system, and this system also further comprises:
Mobile function of exchange entity, connecting circuit territory and packet field network are used for chain of command data and user face data between repeat circuit territory and the packet domain respectively.
Technical scheme by the invention described above as can be known, the present invention is by increasing a mobile function of exchange entity, difference connecting circuit territory and packet field network, and then can realize control signaling and data between repeat circuit territory and the packet domain, in circuit domain, the function of mobile function of exchange entity is identical with common MSC, and in packet domain, the function of mobile function of exchange entity is identical with the function of AS that can terminating call and BCCF/MGW.The present invention has following advantage and characteristics:
(1) method of the present invention need not be revised existing circuit domain, need not access network is improved;
(2) realize two net interoperability functions fully, do acceptance from circuit domain call, accept to call out from packet domain in circuit-domain network at packet network.
Description of drawings
Fig. 1 is the cdma2000 1x networking structure schematic diagram of prior art;
Fig. 2 is for realizing the networking schematic diagram of the inventive method;
Fig. 3 is for realizing the specific embodiment one flow process schematic diagram of the inventive method;
Fig. 4 is for realizing the specific embodiment two flow process schematic diagrames of the inventive method.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Referring to shown in Figure 2, realize that system of the present invention comprises circuit domain 211, packet domain 212, PDSN206, AN 205, MSC (plus) 210.Wherein, circuit domain 211 comprises SMC 204, HLR 203, MSC/VLR 202, BSS 201, and packet domain 212 comprises IMS SMC 209, HSS 208, S-CSCF207.And MSC/VLR 202 links to each other by MSC (plus) 210 with S-CSCF 207.In circuit domain, the function of MSC (plus) 210 is identical with common MSC, and in packet domain, the function of MSC (plus) 210 is identical with the function of AS that can terminating call and BCCF/MGW.
Based on above-mentioned network frame, when MS carries out business in circuit domain, MS can send SMS message by the multimedia short message center of short message service center in packet domain of circuit domain, utilize this short message to represent that this MS is in circuit domain, multimedia short message center this MS of notice MSC (plus) is in circuit domain, after MSC (plus) received this notice, the trigger for download device was to S-CSCF again.After this, when S-CSCF need be when this MA sends packet traffic requests, S-CSCF utilizes trigger that this calling is triggered on the MSC (plus).
When MS carries out business in packet domain, monitoring circuit territory network simultaneously, can in packet domain, judge the beep-page message that whether has in the electric territory oneself, but the business in the ongoing packet domain of MS requires than higher implementation, such as: the VT business, may be because MS own resource deficiency, MS can't monitor circuit-domain network, at this moment, need the process of MS to a location registers of circuit domain initiation, circuit domain writes down this MS and carries out business in packet domain.When circuit-domain network has the paging request of called this MS of being, the MSC of circuit domain can route the call to MSC (plus), MSC (plus) can send the VOIP calling by this MS in packet domain, also can use the CSI service mode to notify user's return circuit territory, afterwards, MS answers the call in circuit domain.
Referring to shown in Figure 3, in the present embodiment, when MS carries out business in circuit domain, realize that the detailed process of reception packet switch domain service is as follows:
Step 301:MS has carried out location registers at MSC/VLR in circuit domain by BSS, and this MS carries out business in circuit domain.Here, the business that this MS carries out in circuit domain can be this MS as caller, the called speech business of carrying out, short message services etc. also can just have been carried out location registers in circuit domain, connect but carry out business.
Step 302: at this moment, if MS need carry out packet switch domain service, this MS sends SMS message to circuit domain sms center (SMC), utilizes this note to represent that this MS carries out business in circuit domain.
Step 303:SMC should short forwards to IMS SMC.
Step 304:IMS SMC notifies MSC (plus).
In actual mechanical process, in order to realize above-mentioned steps 302～304, can set in advance a specific identifier, this sign can be MSC (plus) address, can be a particular number, also can be that specific character string is formed, this character string can be numeral, English alphabet with and combination etc., and sign placed the position of this short message destination Mobile Station International ISDN Number, like this, when short message service center receives that destination Mobile Station International ISDN Number is the short message of above-mentioned particular number, this short message directly is transmitted to IMS SMC.The destination Mobile Station International ISDN Number that IMS SMC identifies this short message is predefined specific identifier, and the transmitting terminal number notifying of this short message is given MSC (plus).Here, for the SMC in the circuit domain and the IMS SMC in the packet domain can identify specific identifier, so can above-mentioned specific identifier be set at SMC and IMS SMC, after SMC and IMS SMC receive short message, as long as determine sign in the position of making an appointment, such as the destination Mobile Station International ISDN Number position, whether with the sign that self is provided with consistent getting final product whether, if it is consistent, then thinking needs notice MSC (plus) to download sFC for the MS of the transmitting terminal number correspondence of this short message, otherwise, think a common short message, transmit processing normally.
And in above-mentioned steps 304, IMS SMC can pass through Session Initiation Protocol, and promptly SUBSCRIBE mechanism is notified MSC (plus), also can notify MSC (plus) by alternate manner.
Step 305:MSC (plus) trigger for download device sFC to S-CSCF, and the Subscriber Number that this trigger sFC triggers is the Subscriber Number of the transmitting terminal of above-mentioned short message.
Step 306: when S-CSCF need be corresponding with Subscriber Number described in the step 305 MS when carrying out packet switch domain service, then utilize the calling that this sFC should the business correspondence to be triggered on the MSC (plus), MSC (plus) initiates audio call to circuit domain again.
Here, calling is triggered to comprises two kinds of situations on the MSC (plus).First kind: packet domain is called out and can be used circuit domain to carry, and as VOIP, at this moment, MSC (plus) is equivalent to a common MSC; Second kind: when the packet domain calling can't use circuit domain to carry, as VT, MSC (plus) sends notice to IMS MSC, the sms center interface protocol that IMS MSC uses standard sends the short message of certain special format of appointing to SMC, and SMC is transmitted to the user to the note of this special format.After the user receives this short message, according to the calling identification in the note, as predetermined in advance a certain particular number, and information such as type of service, determine whether to break the current business call accepted, if the user determines to accept, then send and reply short message and represent receipt of call, the connection in the current circuit domain of breaking then forwards packet domain to, according to the MSC in the short message (plus) address and calling ID, notice MSC (plus) MS has inserted packet field network, and MSC (plus) initiates redirect to S-CSCF, and S-CSCF is handed down to this MS to call request, after this, this MS can carry out the business in the packet domain.
The foregoing description has been set forth when MS carries out business in circuit domain, receives the process of packet switch domain service.This process need MS sends SMS message to packet domain, represent self carrying out the business of circuit domain, when if there is the service request of packet domain in packet domain to this MS, business can be triggered on the MSC (plus), realize the business of packet domain by circuit domain by MSC (plus).
But, if when MS carries out business in packet domain, some is different with said process, generally speaking, promptly under the situation of resource abundance, MS monitoring circuit territory network simultaneously in packet domain, determine whether to have in the circuit domain service request of paging oneself, if have, can be directly switch to and carry out business in the circuit domain, also can be to initiate the VOIP calling by MSC (plus) with professional in the circuit domain.But, MS under the situation of own resource deficiency, such as: this MS carries out video traffic in packet domain, because video traffic requires than higher real-time, MS may can't the monitoring circuit territory because own resource is not enough.At this moment, MS can carry out location registers to MSC/VLR by MSC (plus), and then the beep-page message of circuit-domain network can be handed down to this MS by packet domain.
In such scheme, for performance is considered also can set up a special sms center for two net interoperability, this sms center links to each other with HLR with the MSC of circuit domain, links to each other with MSC (plus), and MS can directly send SMS message to sending MSC (plus) by this short message service center so.
When illustrating that below in conjunction with Fig. 4 MS carries out business in packet domain, when self can't listen to circuit-domain network, this MS answered the process of the beep-page message of circuit domain.
Referring to shown in Figure 4, when MS carried out business in packet domain, when self can't listen to circuit-domain network, the detailed process of beep-page message that this MS answers circuit domain was as follows:
Step 401:MS carries out the business of packet domain in packet domain.
Step 402:MS sends position register request by AN, PDSN, S-CSCF to MSC (plus).
After step 403:MSC (plus) received this position register request, the MSC by circuit domain carried out location registers in HLR, write down this MS at HLR and carry out business in packet domain.
Step 404: when this MS of MSC paging, determine that according to the record of HLR this MS carries out business at present in packet domain.
Step 405: source end MSC uses the circuit domain routing mode of standard to route the call to MSC (plus), and MSC (plus) initiates VOIP to the user again and calls out, and by PDSN, AN calling is sent to MS.
In step 405, MSC (plus) can use the CSI service mode to notify user's return circuit territory, makes the user carry out business in circuit domain.
In flow process shown in Figure 4, if the user registers current at MSC (plus) in HLR, the short message that oriented this MS sends in circuit domain, short message service center can be forwarded to short message MSC (plus), and MSC (plus) uses the grouping short message service of standard to give MS with this short message issuing.
In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (8)
1. one kind is carried out the method that professional terminal realizes packet switch domain service in circuit domain, it is characterized in that, in the cdma20001x system, further increase mobile function of exchange entity, difference connecting circuit territory and packet field network, be used for chain of command data and user face data between repeat circuit territory and the packet domain, this method is further comprising the steps of:
When a. the Business Stream that defines packet domain as S-CSCF is handed down to mobile terminal MS, and determine that this MS does not carry out business in packet domain, S-CSCF triggers call request to described mobile function of exchange entity, notify this MS to return packet domain by described mobile function of exchange entity and carry out business, or, send packet domain by described mobile function of exchange entity to this MS and call out.
2. method according to claim 1 is characterized in that, before step a, further comprises:
A1, in circuit domain, carry out professional mobile terminal MS and send SMS message to described mobile function of exchange entity, represent that this MS is just carrying out business in circuit domain by short message service center;
After a2, described mobile function of exchange entity were received this short message, the trigger for download device was to the S-CSCF of packet domain.
3. method according to claim 2 is characterized in that, the destination Mobile Station International ISDN Number of short message described in the step a1 is the address of described mobile function of exchange entity, or, the character string of the described mobile function of exchange entity of unique identification.
4. method according to claim 2 is characterized in that, short message service center described in the step a2 is specifically designed to the short message of transmitting between mobile switching centre and the described mobile function of exchange entity.
5. method according to claim 2, it is characterized in that, described short message service center comprises circuit domain short message service center and packet domain multimedia short message center, and MS described in the step a1 comprises to the step that described mobile function of exchange entity sends SMS message by short message service center:
A11, this MS send SMS message to the circuit domain sms center, utilize this note to represent that this MS carries out business in circuit domain, and wherein, the destination Mobile Station International ISDN Number of this short message is the address of described mobile function of exchange entity;
A12, circuit domain sms center are forwarded to packet domain multimedia short message center with this short message;
A13, packet domain multimedia short message center are transmitted to this short message described mobile function of exchange entity again.
6. method according to claim 5 is characterized in that, the multimedia short message of packet domain described in step a13 center sends to described mobile function of exchange entity by customization time mechanism SUBSCRIB with this short message.
7. one kind is carried out the method that professional terminal realizes circuit domain business in packet domain, it is characterized in that, in the cdma20001x system, further increase mobile function of exchange entity, difference connecting circuit territory and packet field network, be used for chain of command data and user face data between repeat circuit territory and the packet domain, this method is further comprising the steps of:
A. be in the packet domain state of activation MS determine can't monitoring circuit territory network after, self be in the packet domain by the attaching position register registration of described mobile function of exchange entity in circuit domain;
B. when the moving exchanging center MSC in the circuit domain defines system message or beep-page message and is handed down to this MS, MSC sends to this MS by described mobile function of exchange entity with system message or beep-page message, or MSC notifies this MS return circuit territory receiving system message or beep-page message by described mobile function of exchange entity.
8. system that realizes circuit domain and packet domain bidirectional alternative operation is applied to it is characterized in that in the cdma20001x system that this system also further comprises:
Mobile function of exchange entity, connecting circuit territory and packet field network are used for chain of command data and user face data between repeat circuit territory and the packet domain respectively.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100075155A CN100384188C (en) | 2005-02-05 | 2005-02-05 | Method and system for realizing bidirectional alternative operation of circuit field and group field |
| PCT/CN2006/000194 WO2006081772A1 (en) | 2005-02-05 | 2006-02-05 | A method for realizing two-way operation between circuit domain and group domain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100075155A CN100384188C (en) | 2005-02-05 | 2005-02-05 | Method and system for realizing bidirectional alternative operation of circuit field and group field |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1816022A CN1816022A (en) | 2006-08-09 |
| CN100384188C true CN100384188C (en) | 2008-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100075155A Expired - Fee Related CN100384188C (en) | 2005-02-05 | 2005-02-05 | Method and system for realizing bidirectional alternative operation of circuit field and group field |
Country Status (2)
| Country | Link |
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| CN (1) | CN100384188C (en) |
| WO (1) | WO2006081772A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101128049B (en) * | 2006-08-17 | 2012-07-04 | 华为技术有限公司 | Method and system for providing circuit domain service and service control node SCP |
| CN100592703C (en) * | 2007-04-06 | 2010-02-24 | 华为技术有限公司 | Call control method and circuit switching field adapter as well as terminal equipment |
| CN101299697B (en) * | 2007-04-30 | 2012-09-05 | 华为技术有限公司 | Method and apparatus for logoff of wireless IP access network association address |
| EP2153616B1 (en) * | 2007-06-01 | 2013-07-03 | Research In Motion Limited | System and method for managing mobile-terminated (mt) calls in ims network environment using alternative signaling |
| CN101374335B (en) * | 2007-08-23 | 2011-11-16 | 华为技术有限公司 | System, apparatus and method for providing business for user equipment |
| CN101330652A (en) * | 2007-12-29 | 2008-12-24 | 华为技术有限公司 | Method, system and apparatus for providing intelligent business for IMS user |
| CN101527967B (en) * | 2008-03-06 | 2011-06-01 | 华为技术有限公司 | Method, system and device for realizing CS domain service in flat UMTS |
| CN102143602B (en) * | 2008-03-06 | 2013-12-04 | 华为技术有限公司 | Method for realizing circuit switching (CS) domain service in flat and universal mobile telecommunication system (UMTS), system and equipment |
| CN101291461A (en) * | 2008-06-06 | 2008-10-22 | 中兴通讯股份有限公司 | Short message end call method and system |
| CN101605318B (en) * | 2008-06-13 | 2012-03-21 | 华为技术有限公司 | Method, device and system for realizing service switching |
| CN101753472B (en) * | 2008-12-09 | 2012-09-05 | 华为技术有限公司 | Data transmission method, server and terminal equipment based on circuit domain |
| CN101860845A (en) * | 2010-06-01 | 2010-10-13 | 中兴通讯股份有限公司 | Communication preprocessing method, communication method and communication network |
| CN103686634B (en) * | 2012-09-10 | 2017-03-22 | 中国电信股份有限公司 | Method, system, and gateway used for sending service provider short messages |
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| CN1342005A (en) * | 2000-08-18 | 2002-03-27 | 艾利森电话股份有限公司 | Switchover for radio communication network |
| CN1490965A (en) * | 2002-10-14 | 2004-04-21 | 北京三星通信技术研究有限公司 | Soft switching method between mobile switching center in CDMA 2000 1X mobile communication system |
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| KR100624195B1 (en) * | 2000-07-07 | 2006-09-19 | 엘지전자 주식회사 | Mobile Communication System and data processing method in the vocoder of BSC for serving Packet Data Transmission mobile to mobile |
| CN1479493A (en) * | 2002-08-31 | 2004-03-03 | 深圳市中兴通讯股份有限公司 | Interconnectioin system |
| US6931249B2 (en) * | 2003-01-23 | 2005-08-16 | Motorola, Inc. | Method and apparatus for a target-initiated handoff from a source cellular wireless network to a target non-cellular wireless network |
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- 2006-02-05 WO PCT/CN2006/000194 patent/WO2006081772A1/en not_active Application Discontinuation
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| CN1342005A (en) * | 2000-08-18 | 2002-03-27 | 艾利森电话股份有限公司 | Switchover for radio communication network |
| CN1490965A (en) * | 2002-10-14 | 2004-04-21 | 北京三星通信技术研究有限公司 | Soft switching method between mobile switching center in CDMA 2000 1X mobile communication system |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2006081772A1 (en) | 2006-08-10 |
| CN1816022A (en) | 2006-08-09 |
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