WO2012151813A1 - 一种融合不同接入技术的通信系统及方法 - Google Patents
一种融合不同接入技术的通信系统及方法 Download PDFInfo
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- WO2012151813A1 WO2012151813A1 PCT/CN2011/079188 CN2011079188W WO2012151813A1 WO 2012151813 A1 WO2012151813 A1 WO 2012151813A1 CN 2011079188 W CN2011079188 W CN 2011079188W WO 2012151813 A1 WO2012151813 A1 WO 2012151813A1
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- service
- converged
- access
- terminal
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0226—Traffic management, e.g. flow control or congestion control based on location or mobility
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/04—Registration at HLR or HSS [Home Subscriber Server]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0066—Transmission or use of information for re-establishing the radio link of control information between different types of networks in order to establish a new radio link in the target network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
Definitions
- the present invention relates to a convergence technology for mobile network communication, and more particularly to a communication system and method for combining different access technologies. Background technique
- 2G includes Global System for Mobile Communications (GSM) technology and Code Division Multiple Access (CDMA), and 3G includes Wideband Code Division Multiple Access (WCDMA).
- GSM Global System for Mobile Communications
- CDMA Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- WiMAX Worldwide Interoperability for Microwave Access
- WiMAX Worldwide Interoperability for Microwave Access
- one technology corresponds to one network, and the networks can communicate with each other.
- terminals in two networks can interact.
- the equipment, operation and maintenance, management, and even the operators of each network are independent of each other. Users must use different user identity modules (SIM, Subscriber Identity Module). Cards, different terminals, and even applications from different operators are required to obtain services for different wireless mobile communication technologies.
- SIM Subscriber Identity Module
- communication that is, the transmission of information such as sound, text, pictures and video to a desired recipient with a certain quality of service.
- communication technology it is a problem that operators and equipment manufacturers need to consider.
- the services that can be provided will vary.
- the emerging wireless mobile communication technology will be compatible with the wireless mobile communication technology that appeared before.
- the communication bandwidth is greatly improved, so that the video service can be practical, but the user still needs 2G.
- a well-solved voice communication service For example: Compared with the Universal Mobile Telecommunications System (UMTS) technology, the general packet radio service (GPRS, General Packet Radio Service) has poor data transmission capability, but can still meet many low bandwidths better. Business needs.
- UMTS Universal Mobile Telecommunications System
- GPRS General Packet Radio Service
- the wireless coverage of different wireless mobile communication technologies may be different. For example, where 3G has not been covered, 2G may have covered very well. . Even if the same good coverage is obtained at the same time, under certain bursts and special conditions, it may happen that the capacity of one wireless mobile communication technology has been used up, and the capacity of another wireless mobile communication technology is still sufficient, but Due to terminal and operational reasons, these redundant communication resources are not available.
- the main purpose of the present invention is to provide a communication system and method for merging different access technologies, which can solve the defect that the network provided by the wireless mobile communication technology cannot cooperate to provide communication services, thereby improving the user experience.
- the present invention provides a communication system that combines different access technologies, the system includes: a converged terminal, a first access network, and a converged core network; the converged core network further includes: a first converged access switch, a service server, and a home User Server (HSS, Home Subscriber Server);
- HSS Home Subscriber Server
- the fused terminal is configured to send a service request message including a service identifier to the first fused access switch through the first access network when accessing the network that is fused with different access technologies and needs to perform the service;
- the first converged access switch after receiving the service request message that includes the service identifier, obtains the address of the service server, and then forwards the service request message including the service identifier to the service server;
- the service server is configured to: after receiving the service request message forwarded by the first fused access switch, perform information exchange with the HSS, determine that the service corresponding to the user corresponding to the fused terminal is provided, and use the network that combines different access technologies. Provide business;
- the HSS is configured to perform information exchange with the service server, and determine that the service can be provided for the user corresponding to the converged terminal.
- the first converged access switch is further configured to determine whether the service can be provided for the user corresponding to the converged terminal according to the available resource status, and obtain the service after the service is determined by the user corresponding to the converged terminal.
- the address of the business server is configured to perform information exchange with the service server, and determine that the service can be provided for the user corresponding to the converged terminal.
- the first converged access switch is further configured to determine whether the service can be provided for the user corresponding to the converged terminal according to the available resource status, and obtain the service after the service is determined by the user corresponding to the converged terminal.
- the system further includes a Business Operation Support System (BOSS) for registering user information to the HSS;
- BOSS Business Operation Support System
- the HSS is also used to register user information.
- the service server is further configured to perform charging and statistical processing on the service when the service is provided by using the network that combines different access technologies.
- system further includes: a second access network, the fused core network further comprising: a second fused access switch;
- the fused terminal is further configured to: when the cell handover needs to be performed, by using the first access network, the first access network, the first fused access switch, the first fused access switch, and the second fused access switch, The communication between the second access access switch and the second access network, the second access network, and the converged terminal, the second converged access switch, and the HSS completes the handover process;
- the first access network is further configured to complete a handover process by using a message exchange with the converged terminal and the first converged access switch;
- the first fused access switch is further configured to complete a handover process by using a message interaction with the first access network and the second fused access switch;
- a second converged access switch configured to complete a handover process by using a message exchange with the first converged access switch, the second access network, and the HSS;
- a second access network configured to complete a handover process by using a message interaction with the second converged access switch and the converged terminal
- the HSS is also used to complete the handover process by interacting with the message between the second converged access switch.
- the present invention also provides a communication method combining different access technologies, the method comprising: When accessing a network that integrates different access technologies and needs to perform services, the converged terminal sends a service request message including a service identifier to the converged access switch through the access network;
- the fused access switch obtains the address of the service server according to the service identifier in the received service request message, and then forwards the service request message including the service identifier to the service server; the service server exchanges information with the HSS, and determines that the service server can After the user corresponding to the converged terminal provides the service, the service is provided by using the network that integrates different access technologies.
- the fused terminal sends a service request message including a service identifier to the fused access switch through the access network, where:
- the converged terminal sends a service request message including a service identifier to the access network
- the access network After receiving the service request message, the access network determines that its own resource can provide services for the user corresponding to the converged terminal, and then sends a service request message to the converged access switch.
- the method before the obtaining the address of the service server, the method further includes: determining, by the fused access switch, the service provided by the user corresponding to the fused terminal according to the available resource status.
- the address of the service server is:
- the fused access switch obtains the address of the service server according to the service instance created by itself; or
- the method before the information exchange between the service server and the HSS, the method further includes:
- the service server exchanges information with the HSS, and determines that the service can be provided for the user corresponding to the fusion terminal, as follows:
- the service server After receiving the service request message, the service server determines that its own resource can provide services for the user corresponding to the converged terminal, and then creates a service instance, and according to the user corresponding to the converged terminal. Number, obtain the corresponding HSS address, and then send a service audit message to the HSS;
- the HSS matches the user number and the service identifier in the received service audit message with the user information saved by itself, and determines that the audit response message is passed to the service server after the match is determined.
- the network provides the service by using the network that combines different access technologies, and the service server is fused by the fused converged terminal to which the called converged terminal that performs the service with the converged terminal a message exchange between the HSSs of the user information of the terminal, and a message between the fused access switch connected to the called fused terminal and the access network to which the called fused terminal is connected, establishing the fused terminal and the The service link between the called converged terminals;
- the method when the service is provided by using the network that combines different access technologies, the method further includes:
- the method further includes:
- each network element that provides the service for the service releases the resource corresponding to the service.
- the method when performing communication, the method further includes:
- the fused terminal and the access network, the access network and the fused access switch, the fused access switch, and the cell to which the handover is performed belong to a converged access switch, an access access network to which the switched cell belongs, an access network of the switched cell, an access network of the switched cell, and the converged terminal, and the switched
- the communication system and method for merging different access technologies provided by the present invention, when accessing a network that is fused with different access technologies, and the service needs to be performed, the fused terminal sends a service request message including the service identifier to the fused access switch through the access network.
- the fused access switch obtains the address of the service server according to the service identifier in the received service request message, and then forwards the service request message including the service identifier to the service server; the service server exchanges information with the HSS, and determines that the fusion can be performed.
- the network is provided by the network that integrates different access technologies, so that the network provided by the various wireless mobile communication technologies can cooperate to provide the communication service, thereby improving the user experience.
- FIG. 1 is a schematic structural diagram of a communication system combining different access technologies according to the present invention.
- FIG. 2 is a schematic flowchart of a communication method for combining different access technologies according to the present invention
- FIG. 3 is a schematic flowchart of a method for registering user information to an HSS
- FIG. 4 is a schematic flowchart of a method for implementing a service according to Embodiment 1;
- FIG. 5 is a schematic flowchart of a method for implementing handover in Embodiment 2. detailed description
- the communication system that combines different access technologies includes: a converged terminal 11, a first access network 12, and a converged core network 13; the converged core network 13 further includes: a first converged access The switch 131, the service server 132, and the HSS 133; wherein
- the converged terminal 11 is configured to send a service request message including a service identifier to the first converged access switch 131 through the first access network 12 when accessing a network that is fused with different access technologies and needs to perform a service;
- the first converged access switch 131 is configured to: after receiving the service request message that includes the service identifier, obtain the address of the service server, and then forward the service request message that includes the service identifier to the service server 132;
- the service server 132 is configured to perform the information exchange with the HSS 133 after receiving the service request message forwarded by the first converged access switch 131, and determine that the service can be provided for the user corresponding to the converged terminal, and use the different access by using the convergence.
- Technology network provides services;
- the HSS 133 is configured to perform information exchange with the service server 132, and determine that the service corresponding to the user corresponding to the convergence terminal 11 can be provided.
- the first converged access switch 131 is further configured to determine whether the service can be provided to the user corresponding to the converged terminal 11 according to the available resource status, and after determining that the user corresponding to the converged terminal 11 can provide services, The address of the service server 132 is obtained.
- the system may further include a BOSS 14 for registering user information with the HSS 133; the HSS 133 is also for registering user information.
- the service server 132 is further configured to perform charging and statistical processing on the service when the network is provided by using the network that integrates different access technologies.
- the converged terminal 11 is further configured to release the resource corresponding to the service after the service ends;
- the first access network 12 is further configured to release the resource corresponding to the service after the service ends;
- the first converged access switch 131 is further configured to release resources corresponding to the service of the service after the service ends;
- the service server 132 is further configured to release resources corresponding to the service of the service after the service ends.
- the system may further include: a second access network, where the fused core network 13 further includes: a second fused access switch;
- the converged terminal 11 is further configured to communicate with the first access network 12 when performing cell handover.
- the first access network 12 is also used to communicate with the converged terminal 11 and the first converged access switch.
- the first fused access switch 131 is further configured to complete a handover process by using a message exchange with the first access network 12 and the second fused access switch;
- a second converged access switch configured to complete a handover process by using a message exchange with the first converged access switch 131, the second access network, and the HSS 133;
- a second access network configured to complete a handover process by using a message interaction with the second converged access switch and the converged terminal 11;
- the HSS 133 is further configured to complete a switching process by using a message interaction with the second converged access switch.
- the access network 12 includes a wired access network and a radio access network.
- the access network 12 generally includes a base station and a base station controller, but with the processor
- IP Internet Protocol
- the enhancement of the processing capability and the Internet Protocol (IP) of the access network transmission have eliminated the element of the base station controller in the LTE system, and the base station directly connects with the core network, and the base station bears the large base station controller.
- the base station controller in the present invention is an optional network element, and is equipped with a base station controller, which is determined by a specific access technology. In other words, the specific implementation of the access network is identical to the prior art.
- the first access network 12 and the first converged access switch 131 are required to comply with the same protocol, so that the first converged access switch 131 can be used for all access technologies, correspondingly, Both the second access network and the second converged access switch are required to comply with the same protocol, so that the second converged access switch can be universally used for all access technologies.
- the converged terminal 11, the access network, and the converged access switch all support multiple access technologies, and use these access technologies to establish a required information transmission channel between the converged terminal and the network that integrates different access technologies.
- the converged access switch is part of the converged core network 13, which is equivalent to the edge and antenna of the converged core network 13, for collecting and distributing user traffic, and shielding the access network from the converged core network 13.
- the fused access switch can shield the difference between different access technologies, so that the fused core network 13 does not have to be perceived, but can be fully used for these existing and existing access technologies, where the different accesses are
- the technology corresponds to different access networks.
- the HSS 15 and the converged access switch can also carry the functions of a Home Agent (HA) and a Foreign Agent (FA), respectively, to implement the Mobile IP function under the architecture of the present invention.
- HA Home Agent
- FA Foreign Agent
- the fused access switch also has a channel management function, which respectively corresponds to three types of data: management service information, user information, and air interface resources.
- the channel management function, the mobility management function, and the service management function are respectively performed by the service management module, the mobility management module, and the channel management module of the converged access switch.
- the channel management module is responsible for the management of the air interface channel in the service range of the fused access switch, including adding, deleting, reconfiguring, and querying, and the corresponding air interface resources include: access network type, access network location, access network capacity, There are already channels and so on.
- the task of the mobility management module is to cooperate with the HSS 133 to manage the mobility of the converged terminal 11 so as to timely update the location of the converged terminal access network, so that it can be accessed by other terminals at any time, and the service continuity is maintained.
- Another function of the mobility management module is equivalent to the VLR (Visitor Location Register) in the prior art, that is, the user data is saved for query, and the corresponding user information includes: user identifier, available service identifier, and authentication. Information, access location information of the converged terminal used, and the like.
- the service management module processes the services initiated or received by the user, and the main task is to find and forward the service request to the service server.
- the access switch can be handled independently of the service server. In order to speed up related queries, reduce related messages
- the overhead of the converged access switch can also create instances for business requests within its own service scope and manage it in a targeted manner.
- the corresponding service information may include: a service identifier and a corresponding service server list, configured to implement forwarding of the service request;
- the service instance may include: a service identifier, a service instance identifier, a service server address, a calling user information, and a called user. Information, etc.
- the interface between the access network and the converged access switch is established on a general packet transmission mechanism such as IP, so as to carry a message between the converged terminal 11 and a network that integrates different access technologies, and between the access network and the access switch. Order and business.
- IP general packet transmission mechanism
- the HSS 133 stores and manages the user information.
- the user information includes: a user number, an available service identifier, an available resource, an authentication information, and a used converged terminal information.
- the converged terminal information includes: a terminal identifier, a terminal status, and Access location information of the terminal, etc.
- the Converged Core Network 13 is an information exchange mechanism that applies to all types of content and services and is common to all access technologies.
- the service server 132 controls the implementation of the service in general, and the small-scale service, such as peer-to-peer (P2P) voice communication service, can also be implemented in the converged access switch.
- P2P peer-to-peer
- the present invention further provides a communication method for combining different access technologies. As shown in FIG. 2, the method includes the following steps:
- Step 201 When accessing a network that is fused with different access technologies and needs to perform services, the fused terminal sends a service request message including a service identifier to the fused access switch through the access network.
- the access network refers to: an access network connected to the converged terminal;
- the converged access switch refers to: connecting to the converged terminal through the access network, and providing the converged terminal A converged access switch that accesses services.
- the fused terminal sends a service request message including a service identifier to the fused access switch through the access network, which is specifically:
- the converged terminal sends a service request message including a service identifier to the access network;
- the access network After receiving the service request message, the access network determines that its own resource can provide services for the user corresponding to the converged terminal, and then sends the service request message to the converged access switch.
- the service request message further includes: a calling number, a called number, and related parameters, etc.; determining that the resource of the network can provide the service refers to: the access network determines, according to its available resource status, that the service can be provided; The access network determines the specific processing process that can provide services according to its available resource status, and can use existing technologies.
- the accessing and merging the networks of the different access technologies means: after the merging terminal is powered on, according to a predetermined rule, synchronizing with the base station of the access network through the corresponding access technology, establishing a control channel, and establishing a fusion terminal and the fusion Access control channel between switches.
- the predetermined rules may be set according to requirements, such as: according to user preferences, user and operator agreement, or changes according to network conditions or business progress.
- the access network After the access network determines that the user corresponding to the converged terminal cannot provide services according to the available resource status, the access network returns information that the service cannot be provided to the converged terminal.
- Step 202 The fused access switch obtains the address of the service server according to the service identifier in the received service request message, and then forwards the service request message including the service identifier to the service server.
- the method may further include: before the obtaining the address of the service server, the method further includes: the fused access switch determining, according to the available resource status of the eNB, the service that can be provided to the user corresponding to the fused terminal; wherein the available resource status includes: Memory resources, interface resources, etc.;
- the converged access switch determines the specific processing process that can provide services according to its available resource status, and can use existing technologies.
- the fused access switch After the fused access switch determines that the user corresponding to the fused terminal cannot provide services according to the available resource status, the fused access switch returns information that cannot be provided to the access network, and after receiving the information, the access network returns to the fused terminal.
- the address of the service server is specifically:
- the fused access switch obtains the address of the service server according to the service instance created by itself; or
- the fused access switch queries the address resolver to obtain the address of the service server.
- the service instance includes: a service identifier, a service instance identifier, a service server address, and other service instance related information, such as a user number.
- the address of the service server obtained from the address resolver is stored in the service instance, so as to save the subsequent operation of the service to the service server.
- the address is searched, and after the service instance of the service is created, the fused access switch sends the service instance identifier of the service to the fused terminal through the access network through the established control channel, and when the service is subsequently performed, the fused terminal is used.
- the address resolver has previously Save the address of the business server, merge
- the access switch can query the address resolver to obtain the address of the service server.
- the specific process can be applied to the existing technology.
- Step 203 The service server performs information exchange with the HSS, and after determining that the service can be provided for the user corresponding to the converged terminal, the service is provided by using the network that integrates different access technologies.
- the method may further include:
- BOSS Business Operations Support System
- Step 301 The operator sends a registration message to the HSS through the BOSS.
- Step 302 After receiving the registration message, the HSS saves the user information, and returns a message of successful registration to the BOSS.
- the registration message includes user information; the user information includes: a user number, The service identifier, the available resource, the authentication information, and the information about the merged terminal used, etc.; the information about the merged terminal includes: a terminal identifier, and a terminal status, etc.
- the difference from the prior art is that the user information no longer corresponds to a certain type.
- Access technologies such as GSM or CDMA.
- the authentication information and the authentication algorithm are commonly used in all existing access technologies. In practical applications, the most appropriate authentication algorithm in the access technology may be used; specifically, it may be selected by the operator and/or the user. set.
- the service server exchanges information with the HSS, and determines that the service can be provided for the user corresponding to the converged terminal, specifically:
- the service server After receiving the service request message, the service server determines that its own resource can provide services for the user corresponding to the converged terminal, and then creates a service instance, and obtains a corresponding HSS address according to the user number corresponding to the converged terminal, and then sends the HSS address to the HSS. Send a business review message;
- the HSS After receiving the message, the HSS matches the user number and the service identifier in the message with the user information saved by itself, and determines that the audit response message passed the audit is returned to the service server after the match is determined;
- the service server determines the specific processing process that can provide the service according to the available resource status of the service, and can use the existing technology.
- the service instance includes: a service identifier, a service instance identifier, and other service instance related information, for example: The number, the location information of the corresponding fused access switch, and the like; the specific processing procedure of obtaining the corresponding HSS address according to the user number corresponding to the fused terminal is a prior art; the service audit message includes a user number, a service instance identifier, And the service identifier, and the like; the audit response message includes a service instance identifier.
- the service instance ID created by the service server has a binding relationship with the service instance ID created by the converged access switch.
- the service server After the service server determines that the user corresponding to the converged terminal cannot provide services according to the available resource status, the service server sends the converged access switch to the converged terminal. After the user receives the information, the converged access switch returns information that cannot provide the service to the access network. After receiving the information, the access network returns information that the service cannot be provided to the converged terminal.
- the audit response message of the audit failure is returned to the service server.
- the service server sends information to the converged access switch that cannot provide services for the user corresponding to the converged terminal, and the converged access is performed.
- the switch returns information that cannot provide services to the access network.
- the access network returns information that cannot provide services to the converged terminal.
- a converged access switch to which the called converged terminal that performs the service with the converged terminal belongs, an HSS that stores the user information of the called converged terminal, and a converged access switch that is connected to the called converged terminal a message exchange between the access networks connected by the called converged terminal, and establishing a service link between the converged terminal and the called converged terminal;
- the method may further include:
- the billing and statistics processing is performed on the service.
- the specific processing procedure for performing billing and accounting processing on the service is a prior art, and details are not described herein again.
- the method may further comprise:
- each network element that provides the service for the service releases the resource corresponding to the service of the service
- Each of the network elements providing the service includes: the converged terminal, an access network to which the converged terminal is connected, a converged access switch to which the converged terminal belongs, a service server, the called converged terminal, and a The converged access switch to which the called converged terminal is connected and the access network to which the called converged terminal is connected.
- the method may further include:
- the fused terminal and the access network, the access network and the fused access switch, the fused access switch, and the cell to which the handover is performed belong to a converged access switch, an access access network to which the switched cell belongs, an access network of the switched cell, an access network of the switched cell, and the converged terminal, and the switched
- Embodiment 1 is a diagrammatic representation of Embodiment 1:
- the application scenario of this embodiment is as follows:
- the converged terminal 1 passes through the access network 1, and the converged access switch 1 has access to a network that integrates different access technologies, and the HSS that stores the user information of the converged terminal 1 is called HSS 1 , and the converged terminal 1
- the converged terminal corresponding to the called user is called the converged terminal 2
- the access network connected to the converged terminal 2 is called the access network 2
- the converged terminal 2 is converged.
- the ingress switch is called the converged access switch 2
- the HSS that stores the user information of the converged terminal 2 is called HSS 2.
- the method for implementing the service in this embodiment includes the following steps:
- Step 401 When the converged terminal 1 is powered on, and accesses the network that is fused with different access technologies, and needs to perform the service, the service access message including the service identifier is sent to the converged access switch 1 through the access network 1;
- the accessing the network that combines different access technologies refers to: a policy that is set according to an operator or a user preference, resides in the access network 1 in a similar manner to the prior art, and is integrated with the access A control channel between the switches has been established.
- the user preference may be: according to prior agreement, signal strength, or channel quality.
- the user starts the application in the converged terminal 1 by merging the corresponding channel of the access technology used by the terminal 1, such as: GSM random access channel (RACH, a random access channel, the service request message is sent to the access network 1, and after the access network 1 receives the service request message, it determines that its own resource can provide services for the user corresponding to the converged terminal, and according to the converged access switch 1
- the agreed protocol performs format conversion on the received service request message, and sends the converted service request message to the converged access switch 1.
- the specific processing procedure for performing format conversion on the received service request message may be prior art.
- the service request message includes: a calling number, a called number, a service identifier, and related parameters.
- Step 402 After receiving the service request message, the converged access switch 1 parses the received service request message, determines that the service corresponding to the user corresponding to the converged terminal 1 is provided, and obtains the address of the service server according to the service identifier in the message, and then Forwarding a service request message including a service identifier to the service server;
- the address of the service server is specifically:
- the fused access switch queries the address resolver to obtain the address of the service server.
- the fused access switch creates a corresponding service instance, and stores the address of the service server obtained from the address resolver in the corresponding instance.
- the service instance includes: a service identifier, a service instance identifier, a service server address, and information related to other service instances, such as a user number, etc.; for a service, after the convergence access switch creates a service instance of the service, The address of the service server obtained from the address resolver is stored in the corresponding instance to save the search of the service server address by the subsequent operation of the service, and after the service instance of the service is created, the access switch is merged.
- the service instance identifier of the service is sent to the converged terminal through the access network through the established control channel.
- the converged terminal only needs to send the service request message including the service instance identifier to the converged network through the access network. You can access the switch without sending the service identifier, calling number, called number, and related parameters.
- Step 403 After receiving the service request message, the service server determines that its own resource can provide services for the user corresponding to the converged terminal, and then creates a service instance, and obtains the address of the HSS 1 according to the calling number corresponding to the converged terminal 1. Send a service audit message to the HSS;
- the service audit message includes a user number, a service instance identifier, a service identifier, and the like.
- Step 404 After receiving the message, the HSS1 matches the user number and the service identifier in the message with the user information saved by the user, and determines that the audit response message is passed to the service server after the matching is determined.
- the audit response message includes a service instance identifier.
- the fused access switch 1 When the fused access switch 1 has saved the user information, that is, when the function of the VLR is available, the fused access switch 1 can review the service itself, and after the audit is passed, send a service request message to the service server, and notify The audit has been passed. At this point, you do not need to perform steps 403-404»
- Step 405 After receiving the audit response message, the service server sends a called query message to the HSS 2;
- the purpose of the called party query message is: querying whether the called user and the converged terminal 2 can and can receive the service; and after determining that the service can be and can be received, further querying the location of the called party.
- the called query message includes: a service identifier applied by the calling user, a service instance identifier, and a called number.
- Step 406 The HSS 2 determines that the converged terminal 2 can and can receive the call, and sends an inquiry response message to the service server.
- the query response message includes: the fused access switch information in which the fused terminal 2 is located, that is, the fused access switch 2 information; the fused access switch information may specifically be: The address of the access switch 2 is merged; the query response message further includes: a service instance identifier.
- the HSS 2 determines that the converged terminal 2 can and can receive the call, specifically:
- the HSS 2 determines that the subscriber number and service identifier in the message match the user information saved by itself.
- Step 407 After receiving the query response message, the service server sends a call called message to the fused access switch 2 according to the address of the fused access switch 2 in the message;
- the call called message includes: a calling number, a called number, a service identifier, and a service instance identifier and corresponding parameters.
- Step 408 After receiving the called party message, the fused access switch 2 finds the called number from the message, and then finds the port corresponding to the access network of the called number, and forwards the call message to the access network 2, and forwards the call message to the access network 2 Converged terminal 2;
- the access network of the called number refers to: access network 2.
- the fused access switch stores all the user information in its own service range, and mainly includes: the location information of the user, corresponding to the port of the access switch connecting the corresponding access network.
- the port corresponding to the access network 2 is found, and the call message is transmitted to the converged terminal 2 through the access network 2, and a service link is also established between the access network 2 and the access switch 2.
- Step 409 After receiving the call message, the converged terminal 2 starts the corresponding service processing procedure, and returns a call response message to the converged access switch 2 through the access network 2, and simultaneously cooperates with the access network 2 to complete the converged access switch. 2 indicates the establishment of the air link segment of the service link;
- Step 410 After the convergence access switch 2 successfully calls the converged terminal 2, it returns to the service server. Return the called response message to indicate that the called party is ready;
- the successful access of the converged access switch 2 to the converged terminal 2 means that the converged access switch 2 receives the call response message sent by the converged terminal 2.
- Step 411 After receiving the called response message sent by the converged access switch 2, the service server returns a service request response message to the converged access switch 1, indicating that the service application has succeeded;
- the service request response message includes: a service instance identifier.
- Step 412 After receiving the service request response message, the fused access switch 1 returns a service request response message indicating that the service request is successful to the fused terminal 1 through the access network 1, indicating that the service is ready to start;
- the service request response message includes: a service instance identifier.
- the converged terminal 1 cooperates with the access network 1 to establish an air interface segment of the service link; the access network 1 cooperates with the converged access switch 1 to establish a ground segment of the service link, and then completes the service link from the converged terminal. 1 to the establishment of the 1 segment of the converged access switch;
- the specific processing procedure of the air interface segment in which the convergence terminal 1 cooperates with the access network 1 to establish a service link is a prior art; the specific processing procedure of the ground segment in which the access network 1 cooperates with the converged access switch 1 to establish a service link may be Use existing technology.
- Step 413 The service is in progress, and the media content exchange of the service between the converged terminal 1 and the converged terminal 2 is performed through the established service link;
- the media content of the service between the converged terminal 1 and the converged terminal 2 is forwarded by the corresponding access network and the converged access switch to the media content, and may also need services according to the specific conditions of the media content.
- Processing of the server; media content interaction can be achieved by existing technology.
- Step 414 After the service ends, the converged terminal 1 sends a service end message to the converged access switch 1 through the access network 1;
- the service end message includes: a service identifier, a service instance identifier, and an end Reasons, etc.
- the reason for the termination may be: a normal end or the like.
- Step 415 After receiving the service end message, the fused access switch 1 forwards the message to the service server according to the service identifier in the message;
- the service end message includes: a service identifier, a service instance identifier, and an end reason.
- the reason for the termination may be: a normal end or the like.
- Step 416 The service server receives the service end message, finds the corresponding service instance according to the service instance identifier in the message, and then finds the address of the converged access switch 2, and then sends the service end to the converged access switch 2.
- the service end message includes: a called number, a service identifier, a service instance identifier, and a service end reason, etc., wherein the service end reason may be: a normal end or the like.
- the service server After the service server sends a service end message to the converged access switch 2, its own service instance enters a waiting end state.
- Step 417 At the same time, the service server sends a service end response message to the converged access switch 1;
- the service end response message includes: a calling user identifier, a service identifier, and a service instance identifier.
- Step 418 The fused access switch 1 forwards the service end response message to the merging terminal 1 through the access network 1, and releases the resources corresponding to the service.
- the access network 1 and the converged terminal 1 release the resources corresponding to the service.
- Step 419 The fused access switch 2 forwards the service end message to the fused terminal 2 through the access network 2;
- Step 420 After receiving the service end message, the merging terminal 2 releases the resource corresponding to the service, and then sends a service end response message to the fused access switch 2 through the access network 2.
- the service end response message includes: Service ID and service instance ID.
- the access network 2 After receiving the service end response message, the access network 2 also releases the resources corresponding to the service.
- Step 421 The fused access switch 2 forwards the received service end response message to the service server, and releases the resource corresponding to the service.
- the service server After receiving the service end response message, the service server releases all resources used by the service instance corresponding to the service, and the service ends.
- the service server In the actual operation process, when the service is performed, the service server also involves billing, statistics, and the like, and the existing technology is omitted here.
- steps 417 ⁇ 418 and steps 419 ⁇ 421 are executed in the sequence without any order.
- Embodiment 2 is a diagrammatic representation of Embodiment 1:
- the application scenario of this embodiment is as follows:
- the converged terminal accesses the network through the access network 1.
- the converged access switch 1 has access to the network that integrates different access technologies.
- the HSS saves the user information of the converged terminal, and the location of the converged terminal changes, resulting in the need for the For the cell handover, the switched access network is called the access network 2, and the fused access switch to which the switch belongs is called the fused access switch 2.
- the method for implementing the handover in this embodiment, as shown in FIG. 5, includes the following steps:
- Step 501 After the location movement of the converged terminal occurs, the new cell is found to be more suitable for communication, and when it is determined according to the preset rule that the location switching needs to be performed, the handover request is sent to the access network 1;
- the handover request carries a location identifier of the target cell, where the location identifier includes: a cell identifier, an access network identifier, and a converged access switch identifier; wherein, the converged terminal can learn through periodic broadcast of the access network. Converged access switch identity, access network identity, and cell identity.
- Step 502 The access network 1 performs format conversion on the handover request, and forwards the handover request to the converged access switch 1;
- Step 503 After receiving the handover request, the fused access switch 1 finds the fused access switch 2 covering the target cell according to the location information of the target cell in the request, and forwards the handover request to the fused access switch 2.
- Step 504 After receiving the request, the fused access switch 2 checks the content of the handover request, determines that there are sufficient resources to process the handover according to the available resource status, and determines the access network according to the location information of the target cell in the handover request. 2. Forwarding the handover request to the access network 2.
- Step 505 The fused access switch 2 sends a handover implementation message to the fused access switch 1, informing that the handover can be implemented.
- Step 506 After receiving the handover implementation message, the converged access switch 1 notifies the access network 1 to implement the handover.
- Step 507 After receiving the notification, the access network 1 notifies the converged terminal to implement the handover.
- Step 508 After receiving the notification, the fused terminal cooperates with the access network 2 to perform the handover.
- the specific processing of the handover with the access network 2 may use the existing technology;
- the fused terminal establishes a control channel with the access network 2; further, if there is a service link between the fused terminal and the access network 1, the service link needs to be established to prepare for service switching. .
- Step 509 After the handover is completed, the converged terminal sends a message of successful handover to the access network 2 through the newly established control channel.
- Step 510 After receiving the message, the access network 2 forwards the message that the handover succeeds to the fused access switch 2.
- Step 511 After receiving the message that the handover is successful, the fused access switch 2 reports the access location information of the fused terminal to the HSS.
- Step 512 After receiving the report, the HSS updates its saved access location information of the converged terminal, and returns a location update response message to the converged access switch 2 after completion.
- Step 513 After receiving the message, the converged access switch 2 notifies the converged access switch 1 to switch. carry out.
- Step 514 After receiving the notification, the converged access switch 1 forwards the handover to the access network 1.
- Step 515 After receiving the relay, the access network 1 cooperates with the converged terminal, removes all channels between the two, and releases all related resources.
- the fused access switch 2 needs to create a handover processing instance, and includes the handover processing instance identifier in the corresponding message, so that the access switch 2 updates in real time according to the received corresponding message. Switch the information of the instance.
- the handover process in this embodiment is a simple scenario, and the more complete processing may be performed according to the handover process of the embodiment, and reference has been made to There are technical extensions.
- the specific implementation of the handover procedure according to the present embodiment and referring to the prior art extension is a common technical means for those skilled in the art.
- the user corresponds to the service, and the subscriber number is no longer different depending on the access technology, and the same service can be jointly or separately supported by more than one access technology.
- the selection of the access technology may also be dynamic, that is, according to the different services applied by the user and the specific conditions of the network resources at the time of application, which access technology is used. In the process of business, as the network status changes and the terminal location is updated, the access technology used may also be adjusted accordingly. Access technology selection for users, services, and networks It is transparent.
- a user number generally corresponds to only one converged terminal, but there may be a plurality of converged terminals. Generally, only one pair of converged terminals is required for one user service, but there may be several converged terminals participating. The characteristics, location, and status of these converged terminals are registered in the HSS as the attributes of the user. At this time, the allocation and use of the converged terminals is the responsibility of the service server.
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Description
一种融合不同接入技术的通信系统及方法 技术领域
本发明涉及移动网络通信的融合技术, 特别是指一种融合不同接入技 术的通信系统及方法。 背景技术
从上世纪八十年代开始, 公众无线移动通信技术进入到人们的生活中。 近 30年过去了, 公众无线移动通信技术的发展经历了模拟移动通信技术及 数字移动通信技术两个时代。 而数字移动通信技术又经历了第二代(2G )、 第三代(3G )、 以及第四代(4G )移动通信技术的发展。 并且, 随着移动 通信技术的进一步发展, 数字移动通信技术将来还会有第五代及第六代移 动通信技术等等。 与此同时, 还出现了无线保真(WiFi, Wireless Fidelity )、 紫蜂(ZigBee )、 以及蓝牙等近距离的无线通信技术。
其中, 2G 包括全球移动通信系统(GSM, Global System for Mobile communications )技术及码分多址 ( CDMA, Code Division Multiple Access ) 技术,而 3G包括宽带码分多址( WCDMA, Wideband Code Division Multiple Access )技术、 CDMA-2000技术、 以及时分同步码分多址(TD-SCDMA, Time Division-Synchronous Code Division Multiple Access )技术, 接下去的 4G除了包括 3G中的各种技术各自的长期演进( LTE, Long Term Evolution ) 技术外, 还包括全球微波互联接入(WiMAX, Worldwide Interoperability for Microwave Access )技术。 目前, 上述这些技术在应用时, 一种技术对应一 个网络, 网络之间可以互通, 换句话说, 处于两个网络的终端可以进行交 互。 但是, 每个网络的设备、 运维、 管理, 甚至是运营商均是相互独立的, 用户必须使用不同的用户身份识别模块 ( SIM, Subscriber Identity Module )
卡、 不同的终端, 甚至需要向不同的运营商提出申请, 才能得到不同无线 移动通信技术的服务。
实际上, 对于用户而言, 需要的只是通信, 即: 将声音、 文字、 图片 及视频等信息, 以一定的服务质量, 传送给所希望的接收者。 至于使用什 么样的通信技术实现信息的传送, 则是运营商和设备制造商需要考虑的问 题。
由于不同的无线移动通信技术受自身技术限制, 因此, 所能提供的业 务会有所不同。 一般来说, 后出现的无线移动通信技术会兼容之前出现的 无线移动通信技术, 比如: 到了 3G、 4G 时代, 通信带宽的大大提高使得 视频类业务可以真正走向实用,但用户依然需要 2G就已解决得很好的语音 通信业务。 再比如: 相对于通用移动通信系统(UMTS , Universal Mobile Telecommunications System )技术,通用分组无线月良务( GPRS , General Packet Radio Service )的数据传输能力较差, 但仍可以比较好地满足许多低带宽业 务的需求。
另外, 由于运营商的经营策略等原因, 会出现不同的无线移动通信技 术的无线覆盖范围可能有所不同的情况, 举个例子来说, 3G尚未覆盖的地 方, 2G可能已经覆盖得非常好了。 即使同时得到了同样好的覆盖, 在某些 突发和特殊条件下, 也可能会出现一种无线移动通信技术的容量已经用完, 而另一种无线移动通信技术的容量尚有富余, 但由于终端和运营方面的原 因, 这些富余的通信资源却不能得到应用的情况。
并且, 对于运营商, 无线移动通信技术的不同会导致设备的不同, 这 样, 必然会带来许多设备的重复建设。 实际上, 这些无线移动通信技术的 不同多体现在无线通信部分, 只占整个通信系统的一部分。 由于不同的无 线移动通信技术的诞生和发展具有相对的独立性, 因此, 对同样的用户通 信需求, 处理方法会有所区别。 如果对这些无线移动通信技术进行综合分
析、 整理, 无疑将会增大设备的共用程度, 从而节约大量的资源和能源。 从上面的描述中可以看出, 在现有技术中, 不同的无线移动通信技术 之间相互独立, 终端一般只通过一种无线移动通信技术提供的网络进行通 信业务, 换句话说, 现有的各种无线移动通信技术提供的网络不能协作提 供通信业务, 这样, 会造成运维成本较高、 用户的体验差。 发明内容
有鉴于此, 本发明的主要目的在于提供一种融合不同接入技术的通信 系统及方法, 能解决无线移动通信技术提供的网络不能协作提供通信业务 的缺陷, 进而提升用户体验。
为达到上述目的, 本发明的技术方案是这样实现的:
本发明提供了一种融合不同接入技术的通信系统, 该系统包括: 融合 终端、 第一接入网、 以及融合核心网; 融合核心网进一步包括: 第一融合 接入交换机、 业务服务器以及归属用户服务器 (HSS , Home Subscriber Server ) ; 其中,
融合终端, 用于接入融合不同接入技术的网络, 且需要进行业务时, 通过第一接入网向第一融合接入交换机发送包含业务标识的业务请求消 息;
第一融合接入交换机, 用于收到包含业务标识的业务请求消息后, 获 取业务服务器的地址, 之后向业务服务器转发包含业务标识的业务请求消 息;
业务服务器, 用于收到第一融合接入交换机转发的业务请求消息后, 与 HSS进行信息交互, 确定能为所述融合终端对应的用户提供业务后, 利 用所述融合不同接入技术的网络提供业务;
HSS ,用于与业务服务器进行信息交互,确定能为所述融合终端对应的 用户提供业务。
上述方案中, 所述第一融合接入交换机, 还用于依据自身的可用资源 状况, 确定是否能为融合终端对应的用户提供业务, 并在确定能为融合终 端对应的用户提供业务后, 获取业务服务器的地址。
上述方案中,该系统进一步包括业务运营支撑系统( BOSS, Business & Operation Support System ), 用于将用户信息登记至 HSS;
所述 HSS, 还用于登记用户信息。
上述方案中, 所述业务服务器, 在利用所述融合不同接入技术的网络 提供业务时, 还用于对所述业务进行计费及统计处理。
上述方案中, 该系统进一步包括: 第二接入网, 所述融合核心网进一 步包括: 第二融合接入交换机; 其中,
所述融合终端, 还用于需要进行小区切换时, 通过与第一接入网、 第 一接入网与第一融合接入交换机、 第一融合接入交换机与第二融合接入交 换机、 第二融合接入交换机与第二接入网、 第二接入网与所述融合终端、 第二融合接入交换机与 HSS之间的消息交互, 完成切换流程;
所述第一接入网, 还用于通过与融合终端及第一融合接入交换机之间 的消息交互, 完成切换流程;
所述第一融合接入交换机, 还用于通过与第一接入网及第二融合接入 交换机之间的消息交互, 完成切换流程;
第二融合接入交换机, 用于通过与第一融合接入交换机、 第二接入网、 以及 HSS之间的消息交互, 完成切换流程;
第二接入网, 用于通过与第二融合接入交换机及所述融合终端之间的 消息交互, 完成切换流程;
HSS,还用于通过与第二融合接入交换机之间的消息交互, 完成切换流 程。
本发明还提供了一种融合不同接入技术的通信方法, 该方法包括:
接入融合不同接入技术的网络, 且需要进行业务时, 融合终端通过接 入网向融合接入交换机发送包含业务标识的业务请求消息;
所述融合接入交换机依据收到的业务请求消息中的业务标识, 获取业 务服务器的地址, 之后向业务服务器转发包含业务标识的业务请求消息; 业务服务器与 HSS进行信息交互, 确定能为所述融合终端对应的用户 提供业务后, 利用所述融合不同接入技术的网络提供业务。
上述方案中, 所述融合终端通过接入网向融合接入交换机发送包含业 务标识的业务请求消息, 为:
融合终端向接入网发送包含业务标识的业务请求消息;
接入网收到业务请求消息后, 确定自身的资源能为所述融合终端对应 的用户提供业务后, 将业务请求消息发送给所述融合接入交换机。
上述方案中, 在获取业务服务器的地址之前, 该方法进一步包括: 所述融合接入交换机依据自身的可用资源状况, 确定能为所述融合终 端对应的用户提供业务。
上述方案中, 所述获取业务服务器的地址, 为:
所述融合接入交换机依据自身创建的业务实例, 获得业务服务器的地 址; 或者,
从地址解析器中查询, 获取业务服务器的地址。
上述方案中, 在业务服务器与 HSS进行信息交互之前, 该方法进一步 包括:
通过 BOSS将用户信息登记至 HSS。
上述方案中, 所述业务服务器与 HSS进行信息交互, 确定能为所述融 合终端对应的用户提供业务, 为:
业务服务器收到业务请求消息后, 确定自身的资源能为所述融合终端 对应的用户提供业务后, 创建业务实例, 并根据所述融合终端对应的用户
号码, 获取对应的 HSS地址, 之后向 HSS发送业务审核消息;
HSS 将收到的业务审核消息中的用户号码及业务标识与自身保存的用 户信息进行匹配, 确定能匹配后, 向业务服务器返回审核通过的审核应答 消息。
上述方案中, 所述利用所述融合不同接入技术的网络提供业务, 为: 业务服务器通过与所述融合终端进行业务的被叫融合终端所属的融合 接入交换机、 与保存所述被叫融合终端的用户信息的 HSS之间、 以及所述 被叫融合终端所连接的融合接入交换机与所述被叫融合终端所连接的接入 网之间的消息交互, 建立所述融合终端与所述被叫融合终端之间的业务链 接;
通过所述业务链接, 进行所述融合终端与所述被叫融合终端之间业务 的媒体内容交换。
上述方案中, 在利用所述融合不同接入技术的网络提供业务时, 该方 法进一步包括:
对所述业务进行计费及统计处理。
上述方案中, 该方法进一步包括:
所述业务结束后, 为所述业务提供服务的各个网元释放自身所述业务 对应的资源。
上述方案中, 在进行通信时, 该方法进一步包括:
当所述融合终端确定需要进行小区切换时, 通过所述融合终端与所述 接入网、 所述接入网与所述融合接入交换机、 所述融合接入交换机与切换 后的小区所属的融合接入交换机、 所述切换后的小区所属的融合接入交换 机与所述切换后的小区的接入网、 所述切换后的小区的接入网与所述融合 终端、 所述切换后的小区所属的融合接入交换机与 HSS之间的消息交互, 完成切换流程。
本发明提供的融合不同接入技术的通信系统及方法, 接入融合不同接 入技术的网络, 且需要进行业务时, 融合终端通过接入网向融合接入交换 机发送包含业务标识的业务请求消息; 融合接入交换机依据收到的业务请 求消息中的业务标识, 获取业务服务器的地址, 之后向业务服务器转发包 含业务标识的业务请求消息; 业务服务器与 HSS进行信息交互, 确定能为 所述融合终端对应的用户提供业务后, 利用所述融合不同接入技术的网络 提供业务, 如此, 各种无线移动通信技术提供的网络能协作提供通信业务, 进而提升用户体验。
另外, 多种接入技术可融入一张网络, 如此, 能增大网络设备的共用 程度, 从而能减少设备的成本, 进而减少维护成本。 附图说明
图 1为本发明融合不同接入技术的通信系统结构示意图;
图 2为本发明融合不同接入技术的通信方法流程示意图;
图 3为将用户信息登记至 HSS的方法流程示意图;
图 4为实施例一实现业务的方法流程示意图;
图 5为实施例二实现切换的方法流程示意图。 具体实施方式
下面结合附图及实施例对本发明再作进一步详细的说明。
本发明融合不同接入技术的通信系统, 如图 1 所示, 该系统包括: 融 合终端 11、 第一接入网 12、 以及融合核心网 13; 融合核心网 13进一步包 括: 第一融合接入交换机 131、 业务服务器 132以及 HSS 133; 其中,
融合终端 11 , 用于接入融合不同接入技术的网络, 且需要进行业务时, 通过第一接入网 12向第一融合接入交换机 131发送包含业务标识的业务请 求消息;
第一融合接入交换机 131 , 用于收到包含业务标识的业务请求消息后, 获取业务服务器的地址, 之后向业务服务器 132转发包含业务标识的业务 请求消息;
业务服务器 132,用于收到第一融合接入交换机 131转发的业务请求消 息后, 与 HSS 133进行信息交互, 确定能为所述融合终端对应的用户提供 业务后, 利用所述融合不同接入技术的网络提供业务;
HSS 133 , 用于与业务服务器 132进行信息交互, 确定能为所述融合终 端 11对应的用户提供业务。
其中,所述第一融合接入交换机 131 ,还用于依据自身的可用资源状况, 确定是否能为融合终端 11对应的用户提供业务,并在确定能为融合终端 11 对应的用户提供业务后, 获取业务服务器 132的地址。
该系统还可以进一步包括 BOSS 14, 用于将用户信息登记至 HSS 133; 所述 HSS 133 , 还用于登记用户信息。
所述业务服务器 132, 在利用所述融合不同接入技术的网络提供业务 时, 还用于对所述业务进行计费及统计处理。
所述融合终端 11 , 还用于业务结束后, 释放自身所述业务对应的资源; 所述第一接入网 12, 还用于业务结束后, 释放自身所述业务对应的资 源;
所述第一融合接入交换机 131 ,还用于业务结束后,释放自身所述业务 对应的资源;
所述业务服务器 132, 还用于业务结束后,释放自身所述业务对应的资 源。
该系统还可以进一步包括: 第二接入网, 所述融合核心网 13还可以进 一步包括: 第二融合接入交换机; 其中,
所述融合终端 11 ,还用于需要进行小区切换时,通过与第一接入网 12、
第一接入网 12与第一融合接入交换机 131、 第一融合接入交换机 131与第 二融合接入交换机、 第二融合接入交换机与第二接入网、 第二接入网与所 述融合终端 11、 第二融合接入交换机与 HSS 133之间的消息交互, 完成切 换流程;
所述第一接入网 12,还用于通过与融合终端 11及第一融合接入交换机
131之间的消息交互, 完成切换流程;
所述第一融合接入交换机 131 , 还用于通过与第一接入网 12及第二融 合接入交换机之间的消息交互, 完成切换流程;
第二融合接入交换机, 用于通过与第一融合接入交换机 131、 第二接入 网、 以及 HSS 133之间的消息交互, 完成切换流程;
第二接入网, 用于通过与第二融合接入交换机及所述融合终端 11之间 的消息交互, 完成切换流程;
HSS 133 , 还用于通过与第二融合接入交换机之间的消息交互, 完成切 换流程。
本发明提供的融合不同接入技术的接入系统中, 接入网 12包括有线接 入网及无线接入网; 其中, 接入网 12—般包括基站及基站控制器, 但随着 处理器处理能力的增强以及接入网传输的因特网协议( IP, Internet Protocol ) 化, LTE系统中已取消了基站控制器这一元素, 由基站直接与核心网连接, 基站承担了原基站控制器的大部分功能。 所以, 本发明中的基站控制器是 一可选网元, 是否配备基站控制器, 由具体的接入技术决定, 换句话说, 接入网的具体实现与现有技术完全相同。 无论是否配备基站控制器, 第一 接入网 12与第一融合接入交换机 131之间均需遵守相同的协议, 以便第一 融合接入交换机 131 能够通用于所有的接入技术, 相应的, 第二接入网与 第二融合接入交换机之间均需遵守相同的协议, 以便第二融合接入交换机 能够通用于所有的接入技术。
融合终端 11、 接入网、 以及融合接入交换机均支持多种接入技术, 并 利用这些接入技术在融合终端与融合不同接入技术的网络之间建立起所需 的信息传输通道。 融合接入交换机是融合核心网 13的一部分, 相当于融合 核心网 13的边缘和触角, 用以收集、 分发用户话务、 向融合核心网 13屏 蔽接入网的不同等。 融合接入交换机可以屏蔽不同的接入技术之间的不同, 使得融合核心网 13不必感知, 却又可完全公用于这些已有的和将有的接入 技术, 这里, 所述不同的接入技术对应相应不同的接入网。 除了上面描述 的功能外, HSS 15和融合接入交换机还可以分别承载本地代理(HA, Home Agent ) 与外地代理(FA, Foreign Agent)功能, 从而实现本发明架构下的 移动 IP功能。
融合接入交换机除了具有上面描述的业务管理功能、 移动管理功能外, 还具有信道管理功能, 分别对应着管理业务信息、 用户信息、 空口资源三 类数据。 其中, 信道管理功能、 移动管理功能及业务管理功能分别由融合 接入交换机的业务管理模块、 移动管理模块及信道管理模块负责。 信道管 理模块负责本融合接入交换机服务范围内空口信道的管理, 包括增加、 删 除、 重配、 以及查询等, 相应的空口资源包括: 接入网类型、 接入网位置、 接入网容量、 已有信道等。 移动管理模块的任务则是与 HSS 133配合, 管 理融合终端 11的移动性, 以便及时更新融合终端接入网络的位置, 从而可 以被其它终端随时访问到, 并保持业务的连续。 移动管理模块的另一个作 用等同现有技术中的拜访位置寄存器( VLR, Visitor Location Register ), 即: 保存用户的数据, 以备查询, 对应的用户信息包括: 用户标识、 可用业务 标识、 鉴权信息、 所用融合终端的接入位置信息等。 业务管理模块对用户 所发起或接收的业务进行处理, 主要任务是寻找、 并将业务请求转发给业 务服务器。 对于简单、 通用的业务, 比如: 简单的语音通话, 接入交换机 也可不经业务服务器, 而独自处理。 为了加快相关的查询, 减小相关消息
的开销, 融合接入交换机还可以为自身服务范围内的业务请求创建实例, 加以针对性管理。 对应的业务信息可以包括: 业务标识及对应的业务服务 器列表, 用以实现对业务请求的转发; 业务实例可以包括: 业务标识、 业 务实例标识、 业务服务器地址、 主叫用户信息、 以及被叫用户信息等。 接 入网与融合接入交换机之间的接口建立在通用分组传输机制比如 IP之上, 以便承载融合终端 11与融合不同接入技术的网络之间、 接入网与接入交换 机之间的信令和业务。
HSS 133存放及管理用户信息; 其中, 所述用户信息包括: 用户号码、 可用业务标识、 可用资源、 鉴权信息以及所用融合终端信息等; 所述融合 终端信息包括: 终端标识、 终端状态、 以及终端的接入位置信息等。
融合核心网 13是信息的交换机制, 适用于所有类型的内容和业务, 通 用于所有的接入技术。
业务服务器 132则总体控制业务的实施,小型业务如点对点(P2P, Peer to Peer ) 的语音通信业务, 也可放在融合接入交换机内实现。
本发明所述系统中的融合终端、 接入网、 融合接入交换机、 HSS 以及 业务服务器的具体处理过程将会在下文中详述。
基于上述系统, 本发明还提供了一种融合不同接入技术的通信方法, 如图 2所示, 包括以下步骤:
步骤 201 : 接入融合不同接入技术的网络, 且需要进行业务时, 融合终 端通过接入网向融合接入交换机发送包含业务标识的业务请求消息;
这里, 所述接入网是指: 与所述融合终端连接的接入网; 所述融合接 入交换机是指: 通过所述接入网与所述融合终端相连、 并为所述融合终端 提供接入服务的融合接入交换机。
所述融合终端通过接入网向融合接入交换机发送包含业务标识的业务 请求消息, 具体为:
融合终端向接入网发送包含业务标识的业务请求消息;
接入网收到业务请求消息后, 确定自身的资源能为所述融合终端对应 的用户提供业务后, 将业务请求消息发送给融合接入交换机。
其中, 所述业务请求消息还包括: 主叫号码、 被叫号码、 以及相关的 参数等; 确定自身的资源能提供业务是指: 接入网依据自身的可用资源状 况, 确定能提供业务; 其中, 接入网依据自身的可用资源状况, 确定能提 供业务的具体处理过程可釆用现有技术。
这里, 所述接入融合不同接入技术的网络是指: 融合终端开机后, 依 据预定规则, 通过对应的接入技术与接入网的基站取得同步, 建立控制信 道, 并建立融合终端与融合接入交换机之间的控制信道。
其中, 可以依据需要设置预定规则, 比如: 根据用户喜好、 用户与运 营商约定、 或根据网络状况或业务进展发生变化等。
当接入网依据自身的可用资源状况, 确定不能为所述融合终端对应的 用户提供业务后, 向所述融合终端返回不能提供业务的信息。
步骤 202: 融合接入交换机依据收到的业务请求消息中的业务标识, 获 取业务服务器的地址, 之后向业务服务器转发包含业务标识的业务请求消 息;
这里, 在获取业务服务器的地址之前, 该方法还可以进一步包括: 融合接入交换机依据自身的可用资源状况, 确定能为所述融合终端对 应的用户提供业务; 其中, 所述可用资源状况包括: 内存资源、 接口资源 等; 融合接入交换机依据自身的可用资源状况, 确定能提供业务的具体处 理过程可釆用现有技术。
当融合接入交换机依据自身的可用资源状况, 确定不能为所述融合终 端对应的用户提供业务后, 向接入网返回不能提供业务的信息, 接入网收 到信息后, 向融合终端返回不能提供业务的信息。
所述获取业务服务器的地址, 具体为:
融合接入交换机依据自身创建的业务实例, 获得业务服务器的地址; 或者,
融合接入交换机从地址解析器中查询, 获取业务服务器的地址; 其中, 所述业务实例包括: 业务标识、 业务实例标识、 业务服务器地 址、 以及其它业务实例相关的信息, 比如: 用户号码等; 对于一个业务, 当融合接入交换机创建该业务的业务实例后, 将从地址解析器处获得的业 务服务器的地址存放在所述业务实例中, 以省去该业务的后续操作对所述 业务服务器地址的查找, 并在创建该业务的业务实例后, 融合接入交换机 通过已建立的控制信道, 将该业务的业务实例标识通过接入网发送给融合 终端, 在后续进行该业务时, 融合终端只需要将包含业务实例标识的业务 请求消息通过接入网发送给融合接入交换机即可, 不需要再发送业务标识、 主叫号码、 被叫号码、 以及相关的参数等; 地址解析器事先已保存业务服 务器的地址, 融合接入交换机从地址解析器中查询, 获取业务服务器的地 址的具体处理过程可釆用现有技术。
步骤 203: 业务服务器与 HSS进行信息交互, 确定能为所述融合终端 对应的用户提供业务后, 利用所述融合不同接入技术的网络提供业务。
这里, 在业务服务器与 HSS进行信息交互之前, 该方法还可以进一步 包括:
通过业务运营支撑系统 ( BOSS , Business & Operation Support System ) 将用户信息登记至 HSS; 具体地, 如图 3所示, 包括:
步骤 301: 运营商通过 BOSS向 HSS发送注册消息;
步骤 302: HSS收到注册消息后, 保存用户信息, 并向 BOSS返回注册 成功的消息;
其中, 所述注册消息包含用户信息; 所述用户信息包括: 用户号码、
可用业务标识、 可用资源、 鉴权信息以及所用融合终端信息等; 所述融合 终端信息包括: 终端标识、 以及终端状态等; 与现有技术不同的是: 所述 用户信息不再对应某一种接入技术, 比如 GSM或 CDMA等。 所述鉴权信 息、 鉴权算法通用于现有的所有接入技术, 在实际应用时, 可以釆用接入 技术中最适当的鉴权算法; 具体地, 可以由运营商和 /或用户选定。
通过 BOSS将用户信息登记至 HSS的具体处理过程为现有技术, 这里 不再赘述。
所述业务服务器与 HSS进行信息交互, 确定能为所述融合终端对应的 用户提供业务, 具体为:
业务服务器收到业务请求消息后, 确定自身的资源能为所述融合终端 对应的用户提供业务后, 创建业务实例, 并根据所述融合终端对应的用户 号码, 获取对应的 HSS地址, 之后向 HSS发送业务审核消息;
HSS 收到消息后, 将消息中的用户号码及业务标识与自身保存的用户 信息进行匹配, 确定能匹配后, 向业务服务器返回审核通过的审核应答消 息;
其中, 业务服务器依据自身的可用资源状况, 确定能提供业务的具体 处理过程可釆用现有技术; 所述业务实例包括: 业务标识、 业务实例标识、 以及其它业务实例相关的信息, 比如: 用户号码、 对应的融合接入交换机 的位置信息等; 根据所述融合终端对应的用户号码, 获取对应的 HSS地址 的具体处理过程为现有技术; 所述业务审核消息包括用户号码、 业务实例 标识、 以及业务标识等; 所述审核应答消息包括业务实例标识。 对于同一 个业务, 业务服务器创建的业务实例标识与融合接入交换机创建的业务实 例标识具有绑定关系。
当业务服务器依据自身的可用资源状况, 确定不能为所述融合终端对 应的用户提供业务后, 向融合接入交换机发送不能为所述融合终端对应的
用户提供业务的信息, 融合接入交换机收到信息后, 向接入网返回不能提 供业务的信息, 接入网收到信息后, 向融合终端返回不能提供业务的信息。
当 HSS确定不能匹配后,向业务服务器返回审核失败的审核应答消息; 业务服务器收到审核应答消息后, 向融合接入交换机发送不能为所述融合 终端对应的用户提供业务的信息, 融合接入交换机收到信息后, 向接入网 返回不能提供业务的信息, 接入网收到信息后, 向融合终端返回不能提供 业务的信息。
所述利用所述融合不同接入技术的网络提供业务, 具体为:
通过与所述融合终端进行业务的被叫融合终端所属的融合接入交换 机、 与保存所述被叫融合终端的用户信息的 HSS、 以及所述被叫融合终端 所连接的融合接入交换机与所述被叫融合终端所连接的接入网之间的消息 交互, 建立所述融合终端与所述被叫融合终端之间的业务链接;
通过所述业务链接, 进行所述融合终端与所述被叫融合终端之间业务 的媒体内容交换。
在利用所述融合不同接入技术的网络提供业务时, 该方法还可以进一 步包括:
对所述业务进行计费及统计等处理; 其中, 对所述业务进行计费及统 计处理的具体处理过程为现有技术, 这里不再赘述。
该方法还可以进一步包括:
所述业务结束后, 为所述业务提供服务的各个网元释放自身所述业务 对应的资源;
其中, 所述提供服务的各个网元包括: 所述融合终端、 所述融合终端 所连接的接入网、 所述融合终端所属的融合接入交换机、 业务服务器、 所 述被叫融合终端、 所述被叫融合终端所连接的融合接入交换机以及所述被 叫融合终端所连接的接入网。
在进行通信时, 该方法还可以进一步包括:
当所述融合终端确定需要进行小区切换时, 通过所述融合终端与所述 接入网、 所述接入网与所述融合接入交换机、 所述融合接入交换机与切换 后的小区所属的融合接入交换机、 所述切换后的小区所属的融合接入交换 机与所述切换后的小区的接入网、 所述切换后的小区的接入网与所述融合 终端、 所述切换后的小区所属的融合接入交换机与 HSS之间的消息交互, 完成切换流程。
下面结合实施例对本发明再作进一步详细的描述。
实施例一:
本实施例的应用场景为: 融合终端 1通过接入网 1、 融合接入交换机 1 已接入融合不同接入技术的网络, 保存融合终端 1的用户信息的 HSS称为 HSS 1 , 融合终端 1作为主叫用户发起业务, 与被叫用户进行通信, 被叫用 户对应的融合终端称为融合终端 2 ,与融合终端 2连接的接入网称为接入网 2, 融合终端 2所属的融合接入交换机称为融合接入交换机 2, 保存融合终 端 2的用户信息的 HSS称为 HSS 2。 本实施例实现业务的方法, 如图 4所 示, 包括以下步骤:
步骤 401: 融合终端 1开机, 并接入融合不同接入技术的网络, 且需要 进行业务时, 通过接入网 1向融合接入交换机 1发送包含业务标识的业务 请求消息;
这里, 所述接入融合不同接入技术的网络是指: 根据运营商或用户喜 好设定的策略, 以与现有技术类似的方法, 驻留在接入网 1 中, 并与融合 接入交换机之间的控制信道已经建立。 其中, 所述依据用户喜好可以是: 依照事先约定、 信号强弱、 或信道质量等。
当需要进行业务时, 用户即启动融合终端 1 中的应用程序, 通过融合 终端 1所釆用的接入技术的相应信道,比如: GSM的随机接入信道(RACH,
Random Access Channel ), 向接入网 1发送业务请求消息, 接入网 1收到业 务请求消息后, 确定自身的资源能为所述融合终端对应的用户提供业务后, 依据与融合接入交换机 1 约定的协议, 对收到的业务请求消息进行格式转 换, 并将转换后的业务请求消息发送给融合接入交换机 1。 其中, 对收到的 业务请求消息进行格式转换的具体处理过程可以是现有技术。
所述业务请求消息包括: 主叫号码、 被叫号码、 业务标识, 以及相关 的参数。
步骤 402: 融合接入交换机 1收到业务请求消息后, 解析收到的业务请 求消息, 确定能为融合终端 1 对应的用户提供业务后, 根据消息中的业务 标识, 获取业务服务器的地址, 之后向业务服务器转发包含业务标识的业 务请求消息;
所述获取业务服务器的地址, 具体为:
融合接入交换机从地址解析器中查询, 获取业务服务器的地址; 或者, 融合接入交换机创建相应的业务实例, 将从地址解析器处获得的业务 服务器的地址存放在相应的实例中;
其中, 所述业务实例包括: 业务标识、 业务实例标识、 业务服务器地 址、 以及其它业务实例相关的信息, 比如: 用户号码等; 对于一个业务, 当融合接入交换机创建该业务的业务实例后, 将从地址解析器处获得的业 务服务器的地址存放在相应的实例中, 以省去该业务的后续操作对所述业 务服务器地址的查找, 并在创建该业务的业务实例后, 融合接入交换机通 过已建立的控制信道, 将该业务的业务实例标识通过接入网发送给融合终 端, 在后续进行该业务时, 融合终端只需要将包含业务实例标识的业务请 求消息通过接入网发送给融合接入交换机即可, 不需要再发送业务标识、 主叫号码、 被叫号码、 以及相关的参数等;
地址解析器事先已保存业务服务器的地址, 融合接入交换机从地址解
析器中查询, 获取业务服务器的地址的具体处理过程可釆用现有技术。 步骤 403: 业务服务器收到业务请求消息, 确定自身的资源能为所述融 合终端对应的用户提供业务后, 创建业务实例, 并根据融合终端 1对应的 主叫号码, 获取 HSS 1的地址, 之后向 HSS发送业务审核消息;
这里, 所述业务审核消息包括用户号码、 业务实例标识、 以及业务标 识等。
步骤 404: HSS1收到消息后, 将消息中的用户号码及业务标识与自身 保存的用户信息进行匹配, 确定能匹配后, 向业务服务器返回审核通过的 审核应答消息;
这里, 所述审核应答消息包括业务实例标识。
当融合接入交换机 1已保存用户信息时, 即: 具有 VLR的功能时, 融 合接入交换机 1 自身可以对所述业务进行审核, 并在审核通过后, 向业务 服务器发送业务请求消息, 并告知审核已通过, 此时, 不需要执行步骤 403-404»
步骤 405: 业务服务器收到审核应答消息后, 向 HSS 2发送被叫查询消 息;
这里, 所述发送被叫查询消息的目的为: 查询被叫用户、 融合终端 2 是否可以且能够接收此次业务; 且确定可以且能够接收此次业务后, 则进 一步查询被叫所在位置。
所述被叫查询消息包括: 主叫用户所申请的业务标识、 业务实例标识、 以及被叫号码等信息。
步骤 406: HSS 2确定融合终端 2可以且能够接收此次呼叫后, 向业务 服务器发送查询应答消息;
这里, 所述查询应答消息包括: 融合终端 2所在的融合接入交换机信 息, 即: 融合接入交换机 2信息; 所述融合接入交换机信息具体可以是:
融合接入交换机 2的地址; 所述查询应答消息还包括: 业务实例标识。 HSS 2确定融合终端 2可以且能够接收此次呼叫, 具体为:
HSS 2确定消息中的用户号码及业务标识与自身保存的用户信息能匹 配。
步骤 407: 业务服务器收到查询应答消息后,依据消息中的融合接入交 换机 2的地址, 向融合接入交换机 2发送呼叫被叫消息;
这里, 所述呼叫被叫消息包括: 主叫号码、 被叫号码、 业务标识、 以 及业务实例标识及相应参数。
步骤 408: 融合接入交换机 2收到呼叫被叫消息后,从消息中找出被叫 号码, 进而找出被叫号码的接入网对应的端口, 将呼叫消息通过接入网 2, 转发给融合终端 2;
这里, 所述被叫号码的接入网就是指: 接入网 2。
融合接入交换机中存储着自身服务范围内的所有的用户信息, 主要包 括: 用户的位置信息, 对应于连接相应接入网的接入交换机的端口。
找出接入网 2对应的端口, 将呼叫消息通过接入网 2, 转发给融合终端 2的同时, 接入网 2与接入交换机 2之间的也建立了业务链路。
步骤 409: 融合终端 2收到呼叫消息后, 启动相应业务处理程序, 并通 过接入网 2 , 向融合接入交换机 2返回呼叫应答消息, 同时, 与接入网 2协 作, 完成融合接入交换机 2所指示的业务链接空口段的建立;
这里, 启动相应业务处理程序的具体处理过程为现有技术, 这里不再 赘述。 向融合接入交换机 2返回呼叫应答消息后, 就表明融合终端 2已经 就绪。
与接入网 2协作, 完成融合接入交换机 2所指示的业务链接空口段的 建立的具体处理过程为现有技术, 这里不再赘述。
步骤 410: 融合接入交换机 2成功呼叫融合终端 2后, 向业务服务器返
回被叫应答消息 , 以表示被叫已就绪;
这里, 所述融合接入交换机 2成功呼叫融合终端 2就是指: 融合接入 交换机 2收到融合终端 2发送的呼叫应答消息。
步骤 411 : 业务服务器收到融合接入交换机 2发送的被叫应答消息后, 向融合接入交换机 1返回业务请求应答消息, 表明业务申请已成功;
这里, 所述业务请求应答消息包含: 业务实例标识。
步骤 412: 融合接入交换机 1收到业务请求应答消息后, 通过接入网 1 向融合终端 1返回表示业务请求成功的业务请求应答消息, 表明业务已可 开始;
这里, 所述业务请求应答消息包含: 业务实例标识。
在本步骤执行过程中, 融合终端 1与接入网 1协作, 建立业务链接的 空口段; 接入网 1与融合接入交换机 1协作, 建立业务链接的地面段, 进 而完成业务链接从融合终端 1到融合接入交换机 1段的建立;
这里, 融合终端 1与接入网 1协作, 建立业务链接的空口段的具体处 理过程为现有技术; 接入网 1与融合接入交换机 1协作, 建立业务链接的 地面段的具体处理过程可釆用现有技术。
步骤 413: 业务进行中, 通过建立的业务链接, 进行融合终端 1、 融合 终端 2之间业务的媒体内容交换;
这里, 在交换过程中, 融合终端 1、 融合终端 2之间业务的媒体内容均 经过相应的接入网、 融合接入交换机对媒体内容的转发, 且根据媒体内容 的具体情况, 也可能需要业务服务器的处理; 媒体内容交互可用现有技术 实现。
步骤 414: 业务结束后, 融合终端 1通过接入网 1向融合接入交换机 1 发送业务结束消息;
这里, 所述业务结束消息包括: 业务标识、 业务实例标识、 以及结束
原因等。 其中, 所述结束原因具体可以是: 正常结束等。
步骤 415: 融合接入交换机 1收到业务结束消息后,根据消息中的业务 标识, 将消息转发给业务服务器;
所述业务结束消息包括: 业务标识、 业务实例标识、 以及结束原因等。 其中, 所述结束原因具体可以是: 正常结束等。
步骤 416:业务月良务器收到业务结束消息,才艮据消息中的业务实例标识, 找到相应的业务实例, 进而找到融合接入交换机 2 的地址, 之后向融合接 入交换机 2发送业务结束消息;
这里, 所述业务结束消息包括: 被叫号码、 业务标识、 业务实例标识、 以及业务结束原因等; 其中, 所述业务结束原因具体可以是: 正常结束等。
业务服务器向融合接入交换机 2发送业务结束消息后, 自身的业务实 例进入等待结束状态。
步骤 417: 同时, 业务服务器向融合接入交换机 1发送业务结束应答消 息;
这里, 所述业务结束应答消息包括: 主叫用户标识、 业务标识、 以及 业务实例标识。
步骤 418:融合接入交换机 1通过接入网 1将业务结束应答消息转发给 融合终端 1 , 并释放自身所述业务对应的资源;
这里, 接入网 1及融合终端 1收到业务结束应答消息后, 均释放自身 所述业务对应的资源。
步骤 419:融合接入交换机 2通过接入网 2将业务结束消息转发给融合 终端 2;
步骤 420: 融合终端 2收到业务结束消息后,释放自身所述业务对应的 资源, 之后通过接入网 2向融合接入交换机 2发送业务结束应答消息; 这里, 所述业务结束应答消息包括: 业务标识及业务实例标识。
接入网 2收到业务结束应答消息后, 也会释放自身所述业务对应的资 源。
步骤 421 :融合接入交换机 2将收到的业务结束应答消息转发给业务服 务器, 并释放自身所述业务对应的资源;
这里, 业务服务器收到业务结束应答消息后, 释放所述业务对应的业 务实例所用的所有资源, 至此, 本次业务结束。 在实际操作过程中, 在进 行业务时, 业务服务器还涉及计费、 统计等处理, 因可用现有技术, 此处 从略。
这里需要说明的是: 在实际应用过程中, 步骤 417~418与步骤 419~421 在执行的时间上, 无先后顺序。
实施例二:
本实施例的应用场景为: 融合终端通过接入网 1、 融合接入交换机 1已 接入融合不同接入技术的网络, HSS 保存融合终端的用户信息, 融合终端 的位置发生变化, 导致需要进行小区切换, 切换后的接入网称为接入网 2, 切换后所属的融合接入交换机称为融合接入交换机 2。本实施例实现切换的 方法, 如图 5所示, 包括以下步骤:
步骤 501 : 融合终端发生位置移动后, 发现新的小区更适合通信, 并且 根据预设规则确定需要进行位置切换时, 向接入网 1发送切换请求;
这里, 所述切换请求中携带目的小区的位置标识, 所述位置标识包括: 小区标识、 接入网标识、 以及融合接入交换机标识; 其中, 融合终端可以 通过接入网的周期性广播, 获知融合接入交换机标识、 接入网标识、 以及 小区标识。
步骤 502: 接入网 1将切换请求进行格式转换, 并转发给融合接入交换 机 1 ;
这里, 所述将切换请求进行格式转换的具体处理过程可釆用现有技术。
步骤 503: 融合接入交换机 1收到切换请求后,根据请求中的目的小区 的位置信息, 找到覆盖目的小区的融合接入交换机 2, 并向融合接入交换机 2转发切换请求。
步骤 504: 融合接入交换机 2收到请求后, 检查切换请求内容, 依据自 身的可用资源状况, 确定有足够的资源处理本次切换后, 根据切换请求中 目的小区的位置信息, 确定接入网 2, 向接入网 2转发切换请求。
步骤 505: 融合接入交换机 2向融合接入交换机 1发送切换实施消息, 通知所述切换可以实施。
步骤 506: 融合接入交换机 1收到切换实施消息后, 通知接入网 1 , 实 施所述切换。
步骤 507: 接入网 1收到通知后, 通知融合终端, 实施所述切换。
步骤 508: 融合终端收到通知后,与接入网 2相互配合,进行所述切换; 这里, 所述与接入网 2相互配合, 进行所述切换的具体处理过程可釆 用现有技术; 在进行所述切换时, 融合终端与接入网 2建立控制信道; 进 一步地, 如果融合终端与接入网 1之间存在业务链路, 则也需要建立相应 的业务链路, 以备业务切换。
步骤 509: 所述切换完成后, 融合终端通过新建立的控制信道, 向接入 网 2发送切换成功的消息。
步骤 510: 接入网 2收到消息后, 向融合接入交换机 2转发切换成功的 消息。
步骤 511 : 融合接入交换机 2收到切换成功的消息后, 向 HSS报告融 合终端的接入位置信息。
步骤 512: HSS收到报告后, 更新自身的保存的所述融合终端的接入位 置信息, 并在完成后, 向融合接入交换机 2返回位置更新应答消息。
步骤 513: 融合接入交换机 2收到消息后, 通知融合接入交换机 1切换
完成。
步骤 514: 融合接入交换机 1收到通知后, 向接入网 1转达切换完成。 步骤 515: 接入网 1收到转达后, 与融合终端合作, 拆除二者之间的所 有信道, 释放所有相关资源;
这里, 本步骤完成后, 表明切换已经完成。
需要说明的是: 在步骤 504~513中, 融合接入交换机 2需要创建切换 处理实例, 并将切换处理实例标识包括在相应的消息中, 以便接入交换机 2 依据收到的相应消息, 实时更新切换实例的信息。
除了上述过程描述的位置发生变化的场景外, 融合终端的位置发生变 化时还可以有两种情况, 一种是在同一接入网内部, 此时, 不需要融合接 入交换机的参与, 也不需要向 HSS上报接入位置信息; 二是在不同接入网 之间, 此时, 需要融合接入交换机的参与, 但仍不需要向 HSS上报。 本实 施例的应用场景最为复杂。
这里需要说明的是: 考虑到融合终端的关机、 移动、 再开机等更复杂 情况的组合, 本实施例的切换流程是简单场景, 更完善的处理可根据本实 施例的切换流程, 并参考已有技术扩展而得。 其中, 根据本实施例的切换 流程并参考已有技术扩展的具体实现为本领域技术人员惯用技术手段。
从上面的描述中可以看出, 在本发明中, 用户对应业务, 用户号码不 再因接入技术不同而异, 相同的业务可由一种以上接入技术共同或单独支 撑。 可以不再有 2G用户、 3G用户的说法, 而是某运营商的用户, 或某个 业务的用户。
另外, 在本发明中, 接入技术的选择还可以是动态的, 即: 根据用户 申请的业务不同、 以及申请时网络资源的具体状况, 确定釆用哪种接入技 术。 在业务进行的过程中, 随着网络状态的变化和终端位置的更新, 所用 接入技术也可能做出相应的调整。 接入技术的选用对用户、 业务、 网络都
是透明的。
使用本发明, 一般情况下, 一个用户号码只对应一个融合终端, 但也 可有若干融合终端, 一次用户业务一般只需一对融合终端, 但也可能有若 干融合终端参与。 这些融合终端的特性、 位置、 状态都将作为该用户的属 性登记在 HSS中, 此时, 融合终端的分配与使用由业务服务器负责。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的保 护范围。
Claims
1、 一种融合不同接入技术的通信系统, 其特征在于, 该系统包括: 融 合终端、 第一接入网、 以及融合核心网; 融合核心网进一步包括: 第一融 合接入交换机、 业务服务器以及归属用户服务器 (HSS ) ; 其中,
融合终端, 用于接入融合不同接入技术的网络, 且需要进行业务时, 通过第一接入网向第一融合接入交换机发送包含业务标识的业务请求消 息;
第一融合接入交换机, 用于收到包含业务标识的业务请求消息后, 获 取业务服务器的地址, 之后向业务服务器转发包含业务标识的业务请求消 息;
业务服务器, 用于收到第一融合接入交换机转发的业务请求消息后, 与 HSS进行信息交互, 确定能为所述融合终端对应的用户提供业务后, 利 用所述融合不同接入技术的网络提供业务;
HSS ,用于与业务服务器进行信息交互,确定能为所述融合终端对应的 用户提供业务。
2、 根据权利要求 1所述的系统, 其特征在于,
所述第一融合接入交换机, 还用于依据自身的可用资源状况, 确定是 否能为融合终端对应的用户提供业务, 并在确定能为融合终端对应的用户 提供业务后, 获取业务服务器的地址。
3、 根据权利要求 1或 2所述的系统, 其特征在于, 该系统进一步包括 业务运营支撑系统(BOSS ), 用于将用户信息登记至 HSS;
所述 HSS , 还用于登记用户信息。
4、 根据权利要求 1或 2所述的系统, 其特征在于, 所述业务服务器, 在利用所述融合不同接入技术的网络提供业务时, 还用于对所述业务进行 计费及统计处理。
5、根据权利要求 1或 2所述的系统,其特征在于,该系统进一步包括: 第二接入网, 所述融合核心网进一步包括: 第二融合接入交换机; 其中, 所述融合终端, 还用于需要进行小区切换时, 通过与第一接入网、 第 一接入网与第一融合接入交换机、 第一融合接入交换机与第二融合接入交 换机、 第二融合接入交换机与第二接入网、 第二接入网与所述融合终端、 第二融合接入交换机与 HSS之间的消息交互, 完成切换流程;
所述第一接入网, 还用于通过与融合终端及第一融合接入交换机之间 的消息交互, 完成切换流程;
所述第一融合接入交换机, 还用于通过与第一接入网及第二融合接入 交换机之间的消息交互, 完成切换流程;
第二融合接入交换机, 用于通过与第一融合接入交换机、 第二接入网、 以及 HSS之间的消息交互, 完成切换流程;
第二接入网, 用于通过与第二融合接入交换机及所述融合终端之间的 消息交互, 完成切换流程;
HSS ,还用于通过与第二融合接入交换机之间的消息交互, 完成切换流 程。
6、 一种融合不同接入技术的通信方法, 其特征在于, 该方法包括: 接入融合不同接入技术的网络, 且需要进行业务时, 融合终端通过接 入网向融合接入交换机发送包含业务标识的业务请求消息;
所述融合接入交换机依据收到的业务请求消息中的业务标识, 获取业 务服务器的地址, 之后向业务服务器转发包含业务标识的业务请求消息; 业务服务器与 HSS进行信息交互, 确定能为所述融合终端对应的用户 提供业务后, 利用所述融合不同接入技术的网络提供业务。
7、 根据权利要求 6所述的方法, 其特征在于, 所述融合终端通过接入 网向融合接入交换机发送包含业务标识的业务请求消息, 为: 融合终端向接入网发送包含业务标识的业务请求消息;
接入网收到业务请求消息后, 确定自身的资源能为所述融合终端对应 的用户提供业务后, 将业务请求消息发送给所述融合接入交换机。
8、 根据权利要求 7所述的方法, 其特征在于, 在获取业务服务器的地 址之前, 该方法进一步包括:
所述融合接入交换机依据自身的可用资源状况, 确定能为所述融合终 端对应的用户提供业务。
9、 根据权利要求 6、 7或 8 所述的方法, 其特征在于, 所述获取业务 服务器的地址, 为:
所述融合接入交换机依据自身创建的业务实例, 获得业务服务器的地 址; 或者,
从地址解析器中查询, 获取业务服务器的地址。
10、 根据权利要求 6、 7或 8 所述的方法, 其特征在于, 在业务服务器 与 HSS进行信息交互之前, 该方法进一步包括:
通过 BOSS将用户信息登记至 HSS。
11、 根据权利要求 6、 7或 8 所述的方法, 其特征在于, 所述业务服务 器与 HSS进行信息交互,确定能为所述融合终端对应的用户提供业务,为: 业务服务器收到业务请求消息后, 确定自身的资源能为所述融合终端 对应的用户提供业务后, 创建业务实例, 并根据所述融合终端对应的用户 号码, 获取对应的 HSS地址, 之后向 HSS发送业务审核消息;
HSS 将收到的业务审核消息中的用户号码及业务标识与自身保存的用 户信息进行匹配, 确定能匹配后, 向业务服务器返回审核通过的审核应答 消息。
12、 根据权利要求 6、 7或 8所述的方法, 其特征在于, 所述利用所述 融合不同接入技术的网络提供业务, 为: 业务服务器通过与所述融合终端进行业务的被叫融合终端所属的融合 接入交换机、 与保存所述被叫融合终端的用户信息的 HSS之间、 以及所述 被叫融合终端所连接的融合接入交换机与所述被叫融合终端所连接的接入 网之间的消息交互, 建立所述融合终端与所述被叫融合终端之间的业务链 接;
通过所述业务链接, 进行所述融合终端与所述被叫融合终端之间业务 的媒体内容交换。
13、 根据权利要求 6、 7或 8所述的方法, 其特征在于, 在利用所述融 合不同接入技术的网络提供业务时, 该方法进一步包括:
对所述业务进行计费及统计处理。
14、 根据权利要求 12所述的方法, 其特征在于, 该方法进一步包括: 所述业务结束后, 为所述业务提供服务的各个网元释放自身所述业务 对应的资源。
15、根据权利要求 6、 7或 8所述的方法, 其特征在于, 在进行通信时, 该方法进一步包括:
当所述融合终端确定需要进行小区切换时, 通过所述融合终端与所述 接入网、 所述接入网与所述融合接入交换机、 所述融合接入交换机与切换 后的小区所属的融合接入交换机、 所述切换后的小区所属的融合接入交换 机与所述切换后的小区的接入网、 所述切换后的小区的接入网与所述融合 终端、 所述切换后的小区所属的融合接入交换机与 HSS之间的消息交互, 完成切换流程。
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