WO2008046346A1 - Procédé, dispositif et système de commutation de service - Google Patents

Procédé, dispositif et système de commutation de service Download PDF

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Publication number
WO2008046346A1
WO2008046346A1 PCT/CN2007/070866 CN2007070866W WO2008046346A1 WO 2008046346 A1 WO2008046346 A1 WO 2008046346A1 CN 2007070866 W CN2007070866 W CN 2007070866W WO 2008046346 A1 WO2008046346 A1 WO 2008046346A1
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WO
WIPO (PCT)
Prior art keywords
party
service
calling party
called party
called
Prior art date
Application number
PCT/CN2007/070866
Other languages
English (en)
Chinese (zh)
Inventor
Hu Li
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2008046346A1 publication Critical patent/WO2008046346A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections

Definitions

  • the present invention relates to the field of communications, and more particularly to a service switching method, apparatus, and system.
  • the method of switching from voice service to fax service is: The calling user dials the called fax PSTN number, and after the connection, the calling user notifies the called user that the fax is required, and the called user is on the fax machine. Send a fax control signal. After receiving the fax control signal, the calling party sends a fax by pressing the fax send button to complete a voice-to-fax service switching process.
  • the wireless network and other networks are connected through the network function module (Inter
  • the IWF is a device in the wireless network, which supports the circuit domain data service interworking function of the wireless network and other networks (such as PSTN, ISDN, Internets and other PLMNs), and uses asynchronous data for remote access, email access, Intranet access, ISP access, public database retrieval, and interconnection of two data terminals.
  • networks such as PSTN, ISDN, Internets and other PLMNs
  • IWF can be divided into CDMA interworking function modules according to the location of IWF resources (CAMA Interworking
  • CIWF Common Interworking Function
  • SIWF Function, referred to as SIWF).
  • CIWF is based on the base station controller (Base Station).
  • BSC BSC Controller, abbreviated as BSC
  • SIWF Mobile Switched Function
  • MSC Mobile Communications Center
  • IWF is mainly used for fax services.
  • the main method of faxing is to use direct fax. That is, after the calling party inputs the special prefix and the called subscriber number, the network side directly establishes a fax service call.
  • voice services there is a need to conduct voice services first and then perform fax services. The main reasons are:
  • the Time Division Multiplexing (TDM) bearer is used, and the Transcoder (TC) resource on the BSC can detect the core network.
  • the fax signal tone on the side Since most of the current fixed stations do not support the calling side to initiate IWF service negotiation, the TC from the BSC-side detects the CED (called called tone, called) signal from the called party, and uses the CED signal from the called party. Initiate the calling IWF business change process. That is to say, before the A port is IPized, the user can complete the switching of the voice to fax service by the same operation method as the voice to fax service switching method in the fixed network.
  • TDM Time Division Multiplexing
  • TC Transcoder
  • MGW Mobile Gateway
  • TrFO TrFO
  • Remote Codec Operation Remote Transcoder
  • the voice to fax service is switched in the following manner: In the case that the fixed station caller cannot initiate a service change, the user initiates a FLASH operation (shooting fork), and initiates a FAX by out-of-band dialing. Negotiation, and the BS C and MSC are required to support this out-of-band negotiation process.
  • the user realizes the flashing fork through the Flash button on the fax machine (the flashing fork is the operation of the phone in the call state, the short time is hung up, and then the off-hook operation).
  • the function of the flash button is similar to the function of a flashing fork.
  • a standard standard flashing fork can be produced (the length of the common flashing fork is uncertain, and the flashing of the flashing button is more standard than the ordinary flashing fork).
  • the method for switching the voice to fax service has the following problems:
  • the switching of the voice to fax service is realized by the method of the flashing method, and the old usage habit of the user is changed, so the user is given Bringing inconvenience in use.
  • the use of the flashing method to perform voice-to-fax switching has a lower success rate because fax negotiation requires negotiation within a certain period of time, and user operation is more difficult to satisfy this operation, resulting in a lower success rate.
  • Embodiments of the invention are in CDMA
  • the embodiment of the present invention provides a service switching method, device and system.
  • the embodiment of the present invention provides a service switching method, including:
  • the called party's mobile switching center initiates a bearer switching request to the calling party's mobile switching center, informing the calling party to establish a connection with the network interworking control function module on the calling side.
  • the embodiment of the invention provides a service switching system, including:
  • the called party connection establishing device is located on the called party side, and is used when the called party's mobile station receives the service switching signal from the called user equipment during the call between the calling party and the called party. Establishing a connection between the called party and the network interworking control function module on the called side by performing service negotiation and hard handover by the base station controller of the called party;
  • the bearer handover request initiating device is located between the called party and the calling party, and is configured to enable the mobile switching center of the called party to initiate a bearer switching request to the mobile switching center of the calling party;
  • a calling party connection establishing device located at the calling party side, configured to notify the base station controller of the calling party to perform service switching after receiving the bearer switching request by the mobile switching center of the calling party Establishing a connection between the calling party and the network interworking control function module on the calling side to complete the service switching.
  • An embodiment of the present invention provides a called party connection establishing apparatus, including: [25] the called party service switching notification module, configured to notify the base station controller of the called party after the mobile station of the called party receives the service switching signal tone from the called party user equipment;
  • a called party service negotiation module configured to enable the base station controller of the called party to send a service request message to the mobile station of the called party to perform service negotiation
  • a called party hard handover module configured to enable the base station controller of the called party to send a handover request message to the mobile switching center of the called party, perform a hard handover, and establish the called party and the The connection between the network interworking function modules on the called side.
  • the embodiment of the present invention provides a calling party connection establishing apparatus, including:
  • Calling party service switching notification module after receiving the bearer switching request after the calling party's mobile switching center receives the bearer switching request
  • a calling party service switching module configured to notify the calling party's mobile switching center to perform service switching after the base station controller of the calling party confirms the service switching by the mobile station of the calling party Establishing a connection between the calling party and the network interworking functional unit on the calling side.
  • the switching function of the IWF service of the voice service to the fax service is realized, and the user usage habit is not changed, which greatly facilitates the user operation.
  • FIG. 1 is a block diagram showing a prior art CIWF networking structure and a SIWF networking structure
  • FIG. 2 is a flow chart showing a service switching method according to an embodiment of the present invention.
  • FIG. 3 is a flowchart showing specific steps of step S202 of the service switching method according to an embodiment of the present invention.
  • step S206 of the service switching method is a flow chart showing the specific steps of step S206 of the service switching method according to an embodiment of the present invention.
  • FIG. 5 is a flowchart showing a service switching method of a specific embodiment of the present invention.
  • FIG. 6 is a block diagram showing a service switching system according to an embodiment of the present invention. [40] Mode for carrying out the invention
  • the method includes: S202: During a call between the calling party and the called party, when the called party's mobile station receives the service switching signal from the called user equipment, the base station controller of the called party performs service negotiation and Hard handover, establishing a connection between the called party and the called party side network interworking control function module; S204, the called party's mobile switching center initiates a bearer switching request to the calling party's mobile switching center; S206, the calling party After receiving the bearer handover request, the mobile switching center notifies the base station controller of the calling party to perform service switching, establishes a connection between the calling party and the network interworking control function module on the calling side, and completes the service switching.
  • step S202 includes (as shown in FIG. 3): S2022, after the mobile station of the called party receives the service switching signal tone from the called user equipment, notifying the base station controller of the called party; S2024, The base station controller of the called party sends a service request message to the mobile station of the called party to perform service negotiation. S2026, the base station controller of the called party sends a handover request message to the mobile switching center of the called party, and performs hard handover and establishment. The connection between the called party and the network interworking function module on the called side.
  • Step S204 is performed by at least one of the following methods: extending the description of the attribute in the session description protocol description, using the description in the V152 protocol, and adding a private description in the extended session description protocol description.
  • step S206 includes (as shown in FIG. 4): S2062, after receiving the bearer handover request, the mobile switching center of the calling party notifies the base station controller of the calling party to initiate a service handover; S2064, the calling party After confirming the service handover by the mobile station of the calling party, the base station controller notifies the calling party's mobile switching center to perform service switching, and establishes a connection between the calling party and the network interworking functional unit on the calling side.
  • the calling party and the called party are in the same end office or different end offices.
  • the above service switching method is used for switching from a voice service to a fax service.
  • the bearer switching request in step S204 carries a fax attribute description.
  • step S2064 the mobile station of the calling party confirms the service switching according to the handover indication message carried by the base station controller of the calling party carrying the fax service configuration record.
  • the method for judging includes: determining, according to a service request message received from a base station controller of the called party and/or the calling party; or judging according to a service request message received by the media gateway of the called party and/or the calling party
  • the media gateway controller of the called party and/or the calling party determines whether the office is based on whether the fax service indicated by the calling party and the called party is received.
  • the fax sender, or the fax signal described by the session description protocol extension determines whether the office is the fax initiator or the receiver.
  • the called party MS receives the CED tone sent by the fax machine, recognizes that the voice service needs to switch the fax service, and sends a message to the called BSC to notify the detection of the fax tone, requesting service switching;
  • the called MS sends a Sendee Response message to the called BSC to accept the fax data service option.
  • the target cell is the current active set, and the service option is a fax data service;
  • the called BSC completes the establishment of the service path to the called IWF network element
  • steps 10) to 19) performed next to the called side are the same as those in the related art, the illustrations of steps 10) to 19) are omitted in Fig. 5.
  • the called BSC sends a general handover indication message (UHDM message) to the called MS, and carries a fax service configuration record;
  • UHDM message general handover indication message
  • the called BSC sends a Handoff to the called MSC. Commenced message, notifying the called MSC mobile station to start switching;
  • the called MS performs the voice-to-fax handover service plane signaling interaction between the called BSC and the called IWF;
  • the calling MSC After receiving the MSC, the calling MSC informs the calling BSC to initiate a codec switch;
  • the calling BSC sends a Service Request message to the calling MS to initiate a service negotiation process
  • the target cell is the current active set, and the service option is a fax data service;
  • the calling BSC sends a general handover indication message (UHDM message) to the calling MS, carrying the fax service configuration record;
  • UHDM message general handover indication message
  • the calling BSC sends a Handoff to the calling MSC.
  • the Commenced message informs the calling MSC mobile station to start switching;
  • the MGC notifies the BSC to perform service switching, and expands the existing codec switching process.
  • the core network When the core network receives the fax service indication, it can notify the calling end office to perform service switching.
  • the notification method is as described above.
  • the end office MSC receives the service switching request, it passes the codec process (not limited to this process).
  • the subsequent process is the same as the process of the A port being the TDM interface.
  • the processing of the fax direction for the MGC to activate the IWF ⁇ is as follows: For the intra-office, the MGC can know the fax direction according to the BSC/MGW reporting signal, and for the inter-office, the end office MGC can according to whether the fax is received by the office instruction.
  • IV21flag Determine whether the office is the originator or receiver of the fax.
  • the system includes: a called party connection establishing device 602, located on the called party side, for connecting the called party's mobile station during the call between the calling party and the called party Receiving a service switching signal tone from the user equipment, performing a service negotiation and a hard handover by the base station controller of the called party, establishing a connection between the network interworking control function module of the called party and the called party side;
  • the initiating device 604 is located between the called party and the calling party, and is configured to enable the called party's mobile switching center to initiate a bearer switching request to the calling party's mobile switching center;
  • the calling party connection establishing device 606 is located at the calling party.
  • the side is configured to notify the calling party's base station controller to perform service switching after receiving the bearer switching request at the calling party's mobile switching center, and establish a connection between the calling party and the calling party side network interworking control function module. , complete the business switch.
  • the called party connection establishing apparatus includes: a called party service switching notification module 6022, configured to notify the base station of the called party to control after the mobile station of the called party receives the service switching signal tone from the user equipment.
  • the called party service negotiation module 6024 is configured to enable the base station controller of the called party to send a service request message to the mobile station of the called party to perform service negotiation;
  • the called party hard handover module 6026 is configured to enable the called party The base station controller sends a handover request message to the mobile switching center of the called party, performs a hard handover, and establishes a connection between the called party and the network interworking function module on the called side.
  • the bearer switching request initiating device performs bearer switching by using at least one of the following methods: extending the description of the attribute in the session description protocol description, using the description in the V152 protocol, and adding a private in the extended session description protocol description. description.
  • the calling party connection establishing apparatus includes: a calling party service switching notification module 6062, configured to notify the calling party's base station controller to initiate a service switching after the calling party's mobile switching center receives the bearer switching request.
  • the calling party service switching module 6064 is configured to notify the calling party's mobile switching center to perform service switching after the base station controller of the calling party confirms the service switching by the mobile station of the calling party, and establish a calling party and a master.
  • the calling party and the called party are in the same end office or different end offices.
  • the service switching system is used for switching from a voice service to a fax service.
  • the bearer switching request in the bearer switching request originating device carries a fax attribute description.
  • the calling party's mobile station verifies the service switching according to the handover indication message carried by the calling party's base station controller carrying the fax service configuration record.
  • the called party and/or the calling party's media The gateway controller is based on the slave and / Or the base station controller of the calling party or the service request message received by the called party and/or the media gateway of the calling party determines the fax direction; when the calling party and the called party are at different end offices, the called party and/or The media gateway controller of the calling party determines whether the local office is a fax sender according to whether the fax service switching indicated by the calling party and the called party is received, or judges whether the local office is a fax initiator or a fax signal according to the extended description of the session description protocol. receiver.
  • the calling user notifies the called user to send a fax control signal on the terminal device (•TE), that is, to send a CED tone on the traffic channel.
  • the BSC is notified to initiate the service request.
  • the BSC and the MGC connect the side to trigger the handover process, trigger the service negotiation process on the air interface side, and establish the connection to the IWF on the A interface and the air interface respectively.
  • this ⁇ M GC informs the IWF to establish the called mode.
  • the MGC can modify the bearer until the calling user, and then the calling side MGC informs the BSC to initiate a service switch to a fax.
  • the subsequent process is the same as the process before the A port IP.
  • the calling and called users have established a connection to the IWF, started the fax service, and realized the voice to fax service switching.
  • the present invention realizes the switching function of the IWF service for realizing the voice service to the fax service in the case of the A port IP or the core network IP in the CDMA mobile communication environment, without changing the user usage habits,
  • the earth is convenient for users to operate.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé, un dispositif et un système de commutation de service. Pendant la conversation entre l'appelant et l'appelé, quand la station mobile de l'appelé a reçu la tonalité du signal de commutation de service en provenance du dispositif utilisateur appelé, la négociation de service et la commutation matérielle sont traitées par le contrôleur de station de base de l'appelé, et il y a alors établissement de la connexion entre l'appelé et le module de la fonction de commande d'interfonctionnement des réseaux du côté de l'appelé (S202). Le centre de commutation de mobiles de l'appelé lance au centre de commutation de mobiles de l'appelant une demande de commutation de portée (S204) et informe l'appelant de l'établissement de la connexion avec le module de la fonction de commande d'interfonctionnement des réseaux du côté de l'appelé (S206).
PCT/CN2007/070866 2006-10-16 2007-10-10 Procédé, dispositif et système de commutation de service WO2008046346A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610150532A CN101166302B (zh) 2006-10-16 2006-10-16 业务切换方法和***
CN200610150532.9 2006-10-16

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Publication Number Publication Date
WO2008046346A1 true WO2008046346A1 (fr) 2008-04-24

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WO (1) WO2008046346A1 (fr)

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CN109963313B (zh) * 2017-12-26 2021-08-24 海能达通信股份有限公司 一种***内、***间越区切换后的信道回收方法及装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030054826A1 (en) * 2001-09-18 2003-03-20 Pietro Fionda Delivery of an incoming data call from a public switched telephone network to a mobile station
CN1801874A (zh) * 2005-01-07 2006-07-12 华为技术有限公司 实现语音业务向传真业务切换的方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1324869C (zh) * 2003-11-28 2007-07-04 华为技术有限公司 一种下一代网络中传真的实现方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030054826A1 (en) * 2001-09-18 2003-03-20 Pietro Fionda Delivery of an incoming data call from a public switched telephone network to a mobile station
CN1801874A (zh) * 2005-01-07 2006-07-12 华为技术有限公司 实现语音业务向传真业务切换的方法

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CN101166302B (zh) 2010-05-19
CN101166302A (zh) 2008-04-23

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