WO2009132562A1 - 语音业务处理方法、装置及系统 - Google Patents

语音业务处理方法、装置及系统 Download PDF

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Publication number
WO2009132562A1
WO2009132562A1 PCT/CN2009/071414 CN2009071414W WO2009132562A1 WO 2009132562 A1 WO2009132562 A1 WO 2009132562A1 CN 2009071414 W CN2009071414 W CN 2009071414W WO 2009132562 A1 WO2009132562 A1 WO 2009132562A1
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WIPO (PCT)
Prior art keywords
service
telephone service
ordinary telephone
master node
home gateway
Prior art date
Application number
PCT/CN2009/071414
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English (en)
French (fr)
Inventor
王丰欣
张凯
Original Assignee
深圳华为通信技术有限公司
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 深圳华为通信技术有限公司 filed Critical 深圳华为通信技术有限公司
Priority to EP09737672A priority Critical patent/EP2271066A4/en
Publication of WO2009132562A1 publication Critical patent/WO2009132562A1/zh
Priority to US12/916,101 priority patent/US8379635B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/0024—Services and arrangements where telephone services are combined with data services
    • H04M7/0057—Services where the data services network provides a telephone service in addition or as an alternative, e.g. for backup purposes, to the telephone service provided by the telephone services network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2854—Wide area networks, e.g. public data networks
    • H04L12/2856—Access arrangements, e.g. Internet access
    • H04L12/2869—Operational details of access network equipments
    • H04L12/2898—Subscriber equipments

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to a voice service processing method, apparatus, and system. Background technique
  • the xDSL method is a relatively common access method.
  • the advantage of this approach is that the data is transmitted over twisted pairs, so the line can be shared with the Public Switched Telephone Network (PSTN) without rewiring.
  • PSTN Public Switched Telephone Network
  • the signal frequency band is used to distinguish different services, specifically: the PSTN service uses an analog signal, and its frequency band is generally less than 4 kHz; and the data service uses a signal in a frequency band greater than 4 kHz, so Proper filtering ensures that the two services do not interfere with each other.
  • the more common client-side broadband communication equipment is called Customer Premises Equipment (CPE) or Home Gateway (HGW), and its uplink can pass through xDSL twisted pair and telecommunication office (Central Office).
  • CPE Customer Premises Equipment
  • HGW Home Gateway
  • DSLAM Digital Subscriber Line Access Multiplexer
  • the Digital Subscriber Line Access Multiplexer (DSLAM) is docked, and the downlink can be connected to the Fast Ethernet (FE) interface, USB interface, and plain old telephone. Service (Plain old telephone service, POTS for short) interface, WiFI interface, etc., complete data compression inside the CPE product.
  • the downlink POTS interface can be directly connected to the telephone, and the analog signal is compressed, compressed, and packetized in the product, and converted into a data signal that can be received by the xDSL protocol, and the DSLAM located in the telecommunication office. Interactive data. In this process, you can make calls using traditional analog telephones.
  • VOIP Voice over IP
  • FX0 External Exchange Office
  • the operator's telephone office to the user's home telephone service system is connected through a twisted pair system, wherein the twisted pair system may carry DSL broadband data services, and may also carry PSTN ordinary telephone services.
  • the home telephone service system generally wires directly in the wall and leads out interfaces in different rooms. (CPEs such as HGW are now common)
  • the uplink of the HGW is connected to the twisted pair system through the DSL interface, and data interaction can be realized.
  • the downlink FE interface can be connected to a computer or a set-top box, and can implement the Internet access function;
  • the downlink POTS interface can be connected to a normal telephone or a fax machine, and can implement VOIP function;
  • the downlink USB interface can be connected with a printer or a USB storage device, and Ability to implement related functions.
  • the POTS interface phone can realize the telephone escape service through the FXO interface.
  • the filter between the HGW and the twisted pair enables filtering and prevents interference between low frequency voice services and high frequency data services.
  • the user only opens the data service (xDSL), and if the ordinary telephone service (PSTN) is not activated, only the first telephone of the downlink POTS interface of the home gateway can To realize the telephone function (only for VOIP service), the second telephone and the third telephone in other rooms cannot implement the telephone function. If the telephones in other rooms also implement the telephone function, the two telephones can only be connected to the home gateway by modifying the wiring of the home telephone service system.
  • xDSL data service
  • PSTN ordinary telephone service
  • a solution is disclosed in the prior art, specifically: adding a detection module to the home gateway for detecting whether there is an ordinary telephone service in the home telephone service system, that is, whether the PSTN service is activated. If the ordinary telephone service is opened, then The relay of the home gateway is turned on. At this time, the telephone connected to the POTS interface and the telephone in other rooms can dial the PSTN telephone; if only the data service is opened, and the ordinary telephone service is not activated, the detection module is reported to the telecommunication office. Then the relay is closed.
  • all the telephones can be connected to the telephone service module located in the home gateway through the relay, and the function of dialing the VOIP telephone can be realized by sampling, compressing, encapsulating and converting into a data stream acceptable to the xDSL protocol.
  • the inventors have found that the prior art has at least the following problems: If the DSLAM fails and the activation request signal cannot be processed, the home gateway cannot receive the acknowledgment signal, thereby failing to close the relay and causing the telephone not to be used. machine. Summary of the invention
  • the embodiment of the invention provides a voice service processing method, device and system, which solves the defects that the prior art cannot implement service conversion when the network side fails, and implements a voice service processing method and device with strong service adaptability and stable performance. And system.
  • the embodiment of the invention provides a voice service processing method, including:
  • the switching component located on the access line of the primary node is closed, so that the ordinary telephone service on the child node is transmitted through the switching component to the home gateway located at the primary node, and the home gateway will
  • the ordinary telephone service is converted into a service based on a packet format.
  • the embodiment of the present invention can carry the ordinary telephone service on the packet switching domain, and realizes that the existing technology cannot adapt to the defects of different service scenarios, and does not need to perform information interaction with the network side when the ordinary telephone service is carried in the packet switching domain. Therefore, it is possible to prevent the malfunction caused by the network side failure, thereby improving the stability of the device.
  • the embodiment of the invention further provides a voice service processing device, including:
  • a detecting module connected to the master node, configured to determine whether there is an ordinary telephone service on the access line of the master node;
  • the switching component is in a closed state when the detecting module determines that there is no ordinary telephone service;
  • the xDSL module is configured to convert the ordinary telephone service into a service based on a data packet format when the switching component is in a closed state.
  • the embodiment of the present invention can carry the ordinary telephone service on the packet switching domain, and realizes that the existing device cannot adapt to the defects of different service scenarios, and does not need to perform information interaction with the network side when the ordinary telephone service is carried in the packet switching domain. Therefore, it is possible to prevent the malfunction caused by the network side failure, thereby improving the stability of the device.
  • the embodiment of the present invention further provides a voice service processing system, including a master node and at least one child node, the master node further includes a home gateway, and the home gateway includes: a detecting module, connected to the master node, configured to determine the master Whether there is ordinary telephone service on the node access line;
  • the xDSL module is configured to convert the ordinary telephone service into a service based on a data packet format when the switching component is in a closed state.
  • the telephone service is implemented by using different bearer networks by different states of the handover device, which overcomes the shortcomings of the existing home gateway to adapt to the service capability, and overcomes the prior art because of the network side failure.
  • the defect of service conversion cannot be realized, and at the same time, it is not necessary to change the wiring pattern of the home telephone service system while adapting to different services, thereby greatly improving the adaptability and stability of the product.
  • Embodiment 1 is a schematic flow chart of Embodiment 1 of the present invention.
  • Embodiment 2 is a schematic structural view of Embodiment 2 of the present invention.
  • FIG. 3 is a schematic structural diagram of Embodiment 3 of the present invention. detailed description The technical solution of the present invention will be further described in detail below through the accompanying drawings and embodiments.
  • the embodiment of the present invention provides a voice service processing method, including: determining whether there is an ordinary telephone service on an access line of a primary node, and if there is no ordinary telephone service, closing a switching component located on an access line of the primary node, so that The ordinary telephone service on the child node is transmitted to the home gateway located at the master node through the switching component, and the home gateway converts the ordinary telephone service into a service based on the data packet format.
  • the foregoing embodiment can carry the ordinary telephone service on the packet switching domain, and realizes that the existing technology cannot adapt to the defects of different service scenarios, and does not need to perform information interaction with the network side when the ordinary telephone service is carried in the packet switching domain. It is also possible to prevent malfunction due to network side failure, thereby improving the stability of the device.
  • FIG. 1 is a schematic flowchart of Embodiment 1 of the present invention. As shown in FIG. 1, the embodiment includes:
  • Step 101 The voltage and current between the access lines of the master node are detected by the detecting module, and it is determined whether there is an ordinary telephone service on the access line of the master node. Specifically, the voltage and current between the access lines of the master node are detected. If the voltage between the access lines is at the first threshold, the ordinary telephone service is in the on-hook state; if the current between the access lines is greater than or equal to the first The second threshold value is that the ordinary telephone service is in a call state; if the voltage between the access lines is greater than or equal to the third threshold, the ordinary telephone service is in a ringing state; if none of the above conditions are met, there is no ordinary telephone. business.
  • Step 102 If the detecting module determines that there is an ordinary telephone service, the switching component located on the primary node is idle, and the ordinary telephone service on the child node passes the low located on the child node.
  • the pass filter directly enters the circuit switched domain and implements ordinary telephone services through switches in the circuit switched domain.
  • Step 103 If the detecting module determines that there is no ordinary telephone service, close the switching component located on the primary node, and the ordinary telephone service on the child node is transmitted to the home gateway located at the primary node by using the switching component, and the home gateway performs the ordinary telephone service. It is converted into a service based on the packet format, transmitted to the packet switched domain, and the ordinary telephone service is realized through the DSLAM of the packet switching domain.
  • the method for controlling the state of the switching component in the first embodiment of the present invention may be specifically: the detecting module determines whether there is an ordinary telephone service, and if there is an ordinary telephone service, the detecting module sends a signal to the processing module, and the processing module sends a signal according to the signal sent by the detecting module.
  • the switching unit transmits a control signal and controls the state of the switching unit.
  • the home gateway located on the primary node when the switching component is in an idle state, converts the ordinary telephone service on the primary node into a service based on the data packet format, and transmits the packet to the packet switching domain to implement the primary node.
  • Telephone service When the switching component is in the closed state, the home gateway located on the primary node converts the ordinary telephone service on the primary node into a service based on the data packet format, and transmits it to the packet switching domain to implement the telephone service of the primary node.
  • the embodiment of the present invention realizes the service requirement of the child node by judging whether there is an ordinary telephone service and directly changing the state of the switching component according to the judgment result.
  • the switching device When the user only opens the ordinary telephone service, the switching device is idle, so that the service of the child node does not directly enter the circuit switching network through the home gateway of the master node to implement the ordinary telephone service of the child node; when the user only opens the data service, the user closes The switching device enters the packet switching network after the analog/digital conversion of the home gateway of the primary node, and overcomes the defect that the prior art cannot adapt the child node to multiple service scenarios.
  • the embodiment of the present invention does not need to perform information interaction with the network side, so that the user side defect caused by the network side failure can be greatly reduced.
  • the embodiment of the present invention further provides a voice service processing apparatus, including: a detecting module, connected to the master node, configured to determine whether there is an ordinary telephone service on the access line of the master node; and switching components, when the detecting module determines that there is no ordinary telephone Closed state during business; xDSL The module, when the switching component is in the closed state, is used to convert the ordinary telephone service into a service based on the data packet format.
  • a voice service processing apparatus including: a detecting module, connected to the master node, configured to determine whether there is an ordinary telephone service on the access line of the master node; and switching components, when the detecting module determines that there is no ordinary telephone Closed state during business; xDSL The module, when the switching component is in the closed state, is used to convert the ordinary telephone service into a service based on the data packet format.
  • the foregoing embodiment can carry the ordinary telephone service on the packet switching domain, and implements the defect that the existing device cannot adapt to different service scenarios, and does not need to perform information interaction with the network side when the ordinary telephone service is carried in the packet switching domain. It is also possible to prevent malfunction due to network side failure, thereby improving the stability of the device.
  • Embodiment 2 is a schematic structural diagram of Embodiment 2 of the present invention. As shown in FIG. 2, the device specifically includes:
  • the detecting module 21 is connected to the master node and configured to determine whether there is a normal telephone service on the access line of the master node.
  • the switching component 22 is in an idle state when the detecting module 21 determines that there is a normal telephone service, and is in a closed state when the detecting module 21 determines that there is no ordinary telephone service.
  • the embodiment of the present invention determines whether there is an ordinary telephone service by the detecting module 21, and changes the state of the switching component 22 according to the judgment result, thereby realizing different service needs. Specifically, when the user only opens the data service, the telephone service of the primary node or the child node is converted into a service based on the data packet format by closing the switching component 22, so that the telephone service enters the packet switching domain to implement the telephone service.
  • the embodiment of the present invention can carry the ordinary telephone service on the packet switching domain, and realizes the defect that the existing device cannot adapt to different service scenarios, and does not need to perform information interaction with the network side when the ordinary telephone service is carried in the packet switching domain. Therefore, it is possible to prevent the malfunction caused by the network side failure, thereby improving the stability of the device.
  • the device in the embodiment of the present invention is equivalent to the home gateway in the home phone service system. Therefore, according to the technical disclosure disclosed in the embodiment of the present invention, the device may be designed as another device independent of the home gateway, or may be The above device is designed in the existing home gateway to enrich the function of the existing home gateway and improve the practicability of the product, and at the same time, it is not necessary to change the wiring of the home telephone service system when the business scenario changes, which is convenient for the user to use.
  • processing may also be included between the detecting module 21 and the switching component 22
  • the module 25 is configured to help the detecting module 21 to change the state of the switching component 22, specifically: the processing module 25, the connection detecting module 21, and the switching component 22, for idle detecting the switching component 22 when the detecting module 21 determines that there is a normal telephone service, when detecting The module 21 determines that the switching component 22 is closed when there is no normal telephone service.
  • the added processing module 25 facilitates the integrated design of the product, which is beneficial to the functional upgrade of the product.
  • the FXO module 24 may further include: the switching component 22 is configured to transmit the ordinary telephone service to the circuit switched domain when the idle device is in the idle state. In this way, the FXO module 24 can carry the telephone service of the master node or the child node on the circuit switched domain, so that the device has more bearer modes to implement the service, thereby improving the service scene adaptability of the device.
  • the voice service processing device referred to in the second embodiment may be a home gateway.
  • the embodiment of the present invention further provides a voice service processing system, including a master node and at least one child node.
  • the master node further includes a home gateway, and the method includes: a detecting module, connected to the master node, configured to determine the master node access line Whether there is a normal telephone service; the switching component is in a closed state when the detecting module determines that there is no ordinary telephone service; and the xDSL module, when the switching component is in the closed state, is used to convert the ordinary telephone service into a service based on the data packet format.
  • the foregoing embodiment implements the telephone service with different bearer networks through different states of the switching device, overcomes the shortcomings of the existing home gateway to adapt to the poor service capability, and overcomes the prior art because of the network side failure.
  • the defect of realizing business conversion, while adapting to different services, does not need to change the wiring pattern of the home telephone service system, thereby greatly improving the adaptability and stability of the product.
  • the system specifically includes a master node (A in FIG. 3) and at least one child node (B and C in FIG. 3), where the child nodes are connected
  • the telephone and the low pass filter the master node further includes a home gateway, a high pass filter and a low pass filter, and the high pass filter is connected to the DSL interface of the home gateway, and the low pass filter is connected through the FXO interface of the home gateway, which includes .
  • the detection module is connected to the master node through the FXO interface and the low-pass filter, and is used to determine the master node connection.
  • the switching component is connected to the detection module through the processing module, and is in an idle state when the detection module determines that there is an ordinary telephone service, and is in a closed state when the detection module determines that there is no ordinary telephone service.
  • the xDSL module when the switching component is in the closed state, is used to convert the ordinary telephone service into a service based on the packet format and transmit to the packet switching domain.
  • the downlink signal of the DSL interface can be converted into a signal that can be recognized by the processing module, and the uplink data of the processing module can be converted into a signal based on the data packet format, that is, a signal of the xDSL protocol format.
  • the processing module, the connection detecting module and the switching component are configured to idle the switching component when the detecting module determines that there is an ordinary telephone service, and close the switching component when the detecting module determines that there is no ordinary telephone service.
  • the FXO module when the idle component is in an idle state, is used to transfer ordinary telephone traffic to the circuit switched domain.
  • ME indicates a USB module, which can be connected to a USB interface, can be connected to a printer or a USB interface storage device, and implements corresponding functions. The functions and usages of this interface are not described here.
  • MF stands for Ethernet module and can be connected to the FE/GFE interface. It can be connected to a computer and other devices to implement services such as Internet access.
  • MD represents the telephone module, which is connected to the downlink POTS interface and can be externally connected to the telephone. This module completes the sampling, compression, and packetization of the telephone analog signal, and sends the converted digital signal to the processing module.
  • a telecommunication line is provided between the telecommunication office and the home telephone service system, and the data service (xDSL) and the ordinary telephone service (PSTN) can be carried on the twisted pair line, wherein the data service is a home gateway and a telecommunication office.
  • the service of signal interaction between the (CO) DSLAM devices, the ordinary telephone service is a signal interaction between the home gateway and the telecommunication office switch device.
  • the PSTN service band is lower, generally less than 4Khz, and the data service band is higher, generally greater than 4Khz. Therefore, the two services can use twisted pair as the transmission medium at the same time, and different filtering processing can be used to solve different services.
  • the problem of mutual interference between signals is provided between the telecommunication office and the home telephone service system, and the data service (xDSL) and the ordinary telephone service (PSTN) can be carried on the twisted pair line, wherein the data service is a home gateway and a telecommunication office.
  • the networking environment commonly used in home telephony services generally has two filters, one is a high-pass filter, which can only pass high-frequency signals while filtering low-frequency signals; the other is low.
  • the pass filter can only pass the low frequency signal, that is, the analog signal of the ordinary telephone service, and at the same time filter the high frequency signal.
  • the high pass filter and the low pass filter can be integrated in the home In the gateway, it can also be independent of the home gateway.
  • the telephone connected to the POTS interface can complete the VOIP function.
  • the specific process is as follows: After the signal sent by the telephone is processed by the M-D, the signal is transmitted to the processing module, and finally processed by the xDSL module and transmitted to the DSLAM of the telecommunication office.
  • the telephone connected to the POTS interface can complete the telephone power-off escape and network disconnection (DSLAM fault) escape.
  • the business process of power-off escape is as follows: The signal sent by the telephone is directly transmitted to the low-pass filter through the switching device, and passes through The master node then transmits to the switch of the telecommunications office.
  • the network-breaking service process is specifically as follows: The analog signal sent by the telephone is transmitted to the processing module after being processed by the MD, and then transmitted to the xDSL module and processed, filtered by the low-pass filter and transmitted to the telecommunication office. Switch. There are many ways to handle the corresponding business, and it is no longer here.
  • the detection module determines according to several different states of the PSTN service, specifically: the voltage of the PSTN service is generally 48 VDC in the on-hook state, and the current is generally greater than or equal to 18 mA in the call state, and the voltage is in the ringing state (the vibration state). Greater than or equal to 50Vrms. If the voltage and current between the two lines do not satisfy the above conditions, it means that the home telephone service system does not open the PSTN service.
  • the detection module can detect the signal from the low-pass filter, that is, it can detect whether there is a PSTN signal on the line. If the PSTN signal is not detected, the Sa signal is sent to the processing module to indicate that the home telephone service system does not open the ordinary telephone service, and only the data service is activated. At this time, the processing module sends a control signal to the switching component according to the signal sent by the detection module. To control the state of the switching component, such as closed or idle.
  • the switching component is in the closed state, the telephone on the child node, that is, the telephone in other rooms, is short-circuited with the telephone of the POTS interface through the switching component, and all the telephones can dial the VOIP telephone at this time, and the specific process is as follows:
  • the signal sent by the telephone is transmitted to the switching component (in the closed state) after passing through the low-pass filter, then transmitted to the processing module after being processed by the MD, and finally processed into data based on the packet format and carried in the packet after being processed by the xDSL module.
  • the DSLAM is eventually transmitted to the telecommunications office. If the detection module detects that there is a PSTN signal, and the switching component is idle, the telephone of other rooms can directly dial the PSTN telephone.
  • the specific process is as follows: The telephone on the child node passes the The filter on the child node is then directly carried on the circuit switched domain and transmitted to the switch of the telecommunication office.
  • the telephone connected to the home gateway can implement both the VOIP service and the PSTN service by switching the state of the component.
  • the third embodiment implements the telephone service with different bearer networks through different states of the handover device, overcomes the shortcomings of the existing home gateway to adapt to the service capability, and overcomes the prior art because of the network side failure.
  • the defect of realizing business conversion, while adapting to different services, does not need to change the wiring pattern of the home telephone service system, thereby greatly improving the adaptability and stability of the product.

Description

语音业务处理方法、 装置及系统 本申请要求于 2008 年 4 月 30 日提交中国专利局， 申请号为 200810105768.X, 发明名称为 "语音业务处理方法、 装置及系统" 的 中国专利申请的优先权， 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及移动通信领域， 尤其涉及一种语音业务处理方法、 装 置及系统。 背景技术
通信系统中实现最后一公里宽带数据接入的方式有很多种，其中 xDSL方式是一种较为常见的接入方式。 这种方式的优点在于用双绞 线实现了传输数据， 因此可以和公共交换电话网 （Public Switched Telephone Network , 简称为 PSTN )共享线路， 而不用重新布线。 对 业务进行处理时， 通过信号频段来区分不同的业务， 具体为： PSTN 业务釆用的是模拟信号， 其频段一般小于 4kHz; 而数据业务釆用的 是大于 4kHz的频段上的信号， 因此通过恰当的滤波能够保证两个业 务互相不干扰。
目前， 比较常见的用户端宽带通信设备被叫做客户端设备 ( Customer Premises Equipment, 简称为 CPE )或者家庭网关 ( Home Gateway, 简称为 HGW ), 其上行可以通过 xDSL 双绞线和电信局 ( Central Office , 简称为 CO ) 的数字用户线接入复用器 （Digital Subscriber Line Access Multiplexer, 简称为 DSLAM )对接， 其下行可 以对接普通以太网 （ Fast Ehethernet, 简称为 FE )接口、 USB接口、 普通老式电话业务 ( Plain old telephone service, 简称为 POTS )接口、 WiFI等接口， 在 CPE产品内部完成数据压缩。 其中下行的 POTS接 口， 可以直接与电话连接， 在产品内部完成模拟信号的釆样、 压缩、 封包，转成 xDSL协议可以接收的数据信号，与位于电信局的 DSLAM 交互数据。 在这个过程中， 就可以实现用传统的模拟电话机拨打
VOIP( Voice over IP)电话。
一般来说， 产品上还会有一个外部交换局 （Foreign Exchange Office, 简称为 FX0 )接口， 用来完成电话逃生功能， 即如果 xDSL 局端设备出现故障时， 所有的数据业务都不能实现， 这个时候下挂在 POTS接口的电话可以通过 PSTN线路来实现拨打电话。
在现有家庭电话业务系统中，运营商电信局到用户的家庭电话业 务系统通过双绞线系统连接， 其中该双绞线系统有可能承载 DSL宽 带数据业务， 也有可能承载 PSTN普通电话业务。 其中家庭电话业务 系统一般直接在墙壁中布线， 并且在不同的房间引出接口。 （现在常 见的 CPE例如 HGW )
HGW的上行通过 DSL接口与双绞线系统对接，并能够实现数据 交互。 下行 FE接口可以与电脑或机顶盒等设备对接， 并能够实现上 网功能； 下行 POTS接口可以与普通电话机或传真机对接， 并能够实 现 VOIP功能； 下行 USB接口可以与打印机或 USB存储设备对接， 并能够实现相关功能。 同时， 在断电和断网情况下， POTS接口的电 话机可以通过 FXO接口实现电话逃生业务。 在 HGW和双绞线之间 的滤波器能够实现滤波功能，并防止了低频语音业务和高频数据业务 之间相互干扰。
如果家庭电话业务系统中釆用了上述的家庭网关时，用户只开通 了数据业务 (xDSL) , 而没有开通普通电话业务 (PSTN)的话， 只有家 庭网关的下行 POTS接口的第一电话机才能够实现电话功能（仅限于 VOIP业务），其它房间的第二电话机和第三电话机就不能实现电话功 能。 如果其它房间的电话机也要实现电话功能的话， 只能通过修改家 庭电话业务系统的布线， 将这两个电话机连接在家庭网关的下行
POTS接口。
针对上述缺陷， 现有技术中公开了一种解决方案， 具体为： 在家 庭网关中增加检测模块，用于检测家庭电话业务系统中是否有普通电 话业务， 即是否开通了 PSTN业务。 如果开通了普通电话业务， 则位 于家庭网关的继电器被开启，此时与 POTS接口连接的电话机和其它 房间的电话机都可以拨打 PSTN电话； 如果只开通了数据业务， 而没 有开通普通电话业务， 则检测模块上报电信局， 然后闭合继电器， 此 时所有的电话机都可以通过继电器接入到位于家庭网关的电话业务 模块，通过釆样，压缩，封包和转换成 xDSL协议可以接受的数据流， 实现拨打 VOIP电话的功能。
在实现本发明的过程中， 发明人发现现有技术至少存在以下问 题： 如果 DSLAM出现故障， 对激活请求信号不能进行处理， 那么家 庭网关无法接收确认信号， 进而不能闭合继电器， 并导致不能使用电 话机。 发明内容
本发明实施例提供一种语音业务处理方法、 装置及系统， 以解决 现有技术当网络侧出现故障时不能实现业务转换的缺陷，实现了业务 适应能力强， 性能稳定的语音业务处理方法、 装置及系统。
本发明实施例提供了一种语音业务处理方法， 包括：
判断主节点的接入线上是否有普通电话业务；
若没有普通电话业务，则闭合位于所述主节点的接入线上的切换 部件，使得子节点上的普通电话业务通过所述切换部件传输到位于主 节点的家庭网关，由所述家庭网关将所述普通电话业务转换为基于数 据包格式的业务传输出去。
本发明实施例能够将普通电话业务承载在包交换域上，实现了现 有的技术不能适应不同业务场景的缺陷，并且将普通电话业务承载在 包交换域时不需要与网络侧进行信息交互，因而又可以防止因为网络 侧故障而引起的不良， 从而提高了装置的稳定性。
本发明实施例还提供了一种语音业务处理装置， 包括：
检测模块， 与主节点连接， 用于判断主节点接入线上是否有普通 电话业务； 切换部件， 当所述检测模块判断出没有普通电话业务时处于闭合 状态；
xDSL模块， 所述切换部件处于闭合状态时， 用于将所述普通电 话业务转换为基于数据包格式的业务传输出去。
本发明实施例能够将普通电话业务承载在包交换域上，实现了现 有的装置不能适应不同业务场景的缺陷，并且将普通电话业务承载在 包交换域时不需要与网络侧进行信息交互，因而又可以防止因为网络 侧故障而引起的不良， 从而提高了装置的稳定性。
本发明实施例还提供了一种语音业务处理系统，包括主节点和至 少一个子节点，所述主节点进一步包括家庭网关，所述家庭网关包括： 检测模块， 与主节点连接， 用于判断主节点接入线上是否有普通 电话业务；
切换部件， 当所述检测模块判断出没有普通电话业务时处于闭合 状态；
xDSL模块， 所述切换部件处于闭合状态时， 用于将所述普通电 话业务转换为基于数据包格式的业务传输出去。
本发明实施例通过不同的切换装置的状态实现了用不同的承载 网实现了电话业务，克服了现有的家庭网关适应业务能力比较差的缺 陷，并且还克服了现有技术因为网络侧故障而不能实现业务转换的缺 陷，同时在适应不同业务的同时不需要改变家庭电话业务系统的布线 格局， 因此大大提高了产品的适应性和稳定性。 附图说明
图 1为本发明实施例一的流程示意图；
图 2为本发明实施例二的结构示意图；
图 3为本发明实施例三的结构示意图。 具体实施方式 下面通过附图和实施例，对本发明的技术方案做进一步的详细描 述。
实施例一
本发明实施例提供了一种语音业务处理方法， 包括： 判断主节点 的接入线上是否有普通电话业务， 若没有普通电话业务， 则闭合位于 主节点的接入线上的切换部件，使得子节点上的普通电话业务通过切 换部件传输到位于主节点的家庭网关，由家庭网关将普通电话业务转 换为基于数据包格式的业务传输出去。
上述实施例能够将普通电话业务承载在包交换域上，实现了现有 的技术不能适应不同业务场景的缺陷，并且将普通电话业务承载在包 交换域时不需要与网络侧进行信息交互，因而又可以防止因为网络侧 故障而引起的不良， 从而提高了装置的稳定性。
图 1为本发明实施例一的流程示意图， 如图 1所示， 该实施例具 体包括：
步骤 101 , 通过检测模块对主节点的接入线之间的电压电流进行 检测并判断主节点的接入线上是否有普通电话业务。具体为检测主节 点的接入线之间的电压电流， 若接入线之间的电压处于第一门限值， 则普通电话业务处于挂机状态；若接入线之间的电流大于或等于第二 门限值， 则普通电话业务处于通话状态； 若接入线之间的电压大于或 等于第三门限值， 则普通电话业务处于振铃状态； 若都不满足上述条 件，则没有普通电话业务。在实现过程中根据发明人的大量实验得出： 当接入线之间的电压达到 48VDC时， 电话处于挂机状态； 当接入线 之间的电流大于或等于 18mA时， 电话处于通话状态； 当接入线之间 的电压大于或等于 50Vrms时， 电话处于振铃状态。 上述实验数据是 在中国的相关行业标准下得出的实验数据。在其他国家根据相关标准 有可能测出不同的数据，但是其测试原理及解决问题的方法依然与本 发明相同或相似， 因此在这里不再赘述其他的数据。
步骤 102, 若检测模块判断出有普通电话业务时， 则闲置位于主 节点上的切换部件，子节点上的普通电话业务通过位于子节点上的低 通滤波器直接进入电路交换域，并通过电路交换域的交换机实现了普 通电话业务。
步骤 103 , 若检测模块判断出没有普通电话业务， 则闭合位于主 节点上的切换部件， 子节点上的普通电话业务， 通过切换部件传输到 位于主节点的家庭网关，并家庭网关将普通电话业务转换为基于数据 包格式的业务， 传输到包交换域， 并通过包交换域的 DSLAM实现了 普通电话业务。
在本发明实施例一中控制切换部件状态的方法还可以具体为：检 测模块判断是否有普通电话业务， 若有普通电话业务， 检测模块向处 理模块发送信号，处理模块根据检测模块发送的信号向切换部件发送 控制信号， 并控制切换部件的状态。
在实施例一中当切换部件处于闲置状态之时，位于主节点上的家 庭网关将主节点上的普通电话业务转换为基于数据包格式的业务，并 传输到包交换域， 以实现主节点的电话业务； 当切换部件处于闭合状 态时，位于主节点上的家庭网关将主节点上的普通电话业务转换为基 于数据包格式的业务，并传输到包交换域，以实现主节点的电话业务。
本发明实施例通过判断有无普通电话业务，并根据判断结果直接 改变切换部件的状态， 实现了子节点的业务需要。 当用户仅开通了普 通电话业务时， 闲置切换装置， 使得子节点的业务不经过主节点的家 庭网关直接进入电路交换网以实现子节点的普通电话业务； 当用户仅 开通了数据业务时， 闭合切换装置， 使得子节点业务经过主节点的家 庭网关的模 /数转换之后进入包交换网， 克服了现有技术无法使得子 节点适应多种业务场景的缺陷。 另外， 本发明实施例通过线路切换来 满足子节点的业务需要时， 不需要与网络侧进行信息交互， 因此可以 大大减小因为网络侧故障而导致的用户侧不良缺陷。
实施例二
本发明实施例还提供了一种语音业务处理装置，包括：检测模块， 与主节点连接， 用于判断主节点接入线上是否有普通电话业务； 切换 部件， 当检测模块判断出没有普通电话业务时处于闭合状态； xDSL 模块， 切换部件处于闭合状态时， 用于将普通电话业务转换为基于数 据包格式的业务传输出去。
上述实施例能够将普通电话业务承载在包交换域上，实现了现有 的装置不能适应不同业务场景的缺陷，并且将普通电话业务承载在包 交换域时不需要与网络侧进行信息交互，因而又可以防止因为网络侧 故障而引起的不良， 从而提高了装置的稳定性。
图 2为本发明实施例二的结构示意图， 如图 2所示， 该装置具体 包括：
检测模块 21 , 与主节点连接， 用于判断主节点接入线上是否有 普通电话业务。
切换部件 22 , 当检测模块 21判断出有普通电话业务时处于闲置 状态， 当检测模块 21判断出没有普通电话业务时处于闭合状态。
xDSL模块 23 , 切换部件 22处于闭合状态时， 用于将普通电话 业务转换为基于数据包格式的业务， 并传输到包交换域。
本发明实施例通过检测模块 21判断有无普通电话业务， 并根据 判断结果改变切换部件 22的状态， 实现了不同业务需要。 具体为当 用户仅开通了数据业务时， 通过闭合切换部件 22将主节点或子节点 的电话业务转换为基于数据包格式的业务，使得电话业务进入包交换 域以实现电话业务。本发明实施例能够将普通电话业务承载在包交换 域上， 实现了现有的装置不能适应不同业务场景的缺陷， 并且将普通 电话业务承载在包交换域时不需要与网络侧进行信息交互，因而又可 以防止因为网络侧故障而引起的不良， 从而提高了装置的稳定性。 本 发明实施例的装置相当于家庭电话业务系统中的家庭网关，因此本领 域技术人员根据本发明实施例中公开的技术启示，可以将上述装置设 计成独立于家庭网关的另一装置，也可以将上述装置设计在现有的家 庭网关中以丰富现有家庭网关的功能并提高产品的实用性，同时在业 务场景改变的时候不需要改变家庭电话业务系统的布线，方便了用户 使用。
在实施例二中在检测模块 21和切换部件 22之间还可以包括处理 模块 25以帮助检测模块 21改变切换部件 22的状态， 具体为： 处理 模块 25 , 连接检测模块 21和切换部件 22, 用于当检测模块 21判断 出有普通电话业务时闲置切换部件 22 , 当检测模块 21判断出没有普 通电话业务时闭合切换部件 22。 增加的处理模块 25有利于产品的集 成化设计， 即有利于产品的功能升级。
在实施例二中还可以进一步包括： FXO模块 24, 切换部件 22处 于闲置装置用于闲置状态时， 用于将普通电话业务传输到电路交换 域。 这样的话， 可以通过 FXO模块 24将主节点或子节点的电话业务 承载在电路交换域上， 使得该装置有更多的承载方式以实现业务， 从 而提高了装置的业务场景适应能力。
在实施例二中所指的语音业务处理装置可以是家庭网关。
实施例三
本发明实施例还提供了一种语音业务处理系统，包括主节点和至 少一个子节点， 主节点进一步包括家庭网关， 其包括： 检测模块， 与 主节点连接， 用于判断主节点接入线上是否有普通电话业务； 切换部 件， 当检测模块判断出没有普通电话业务时处于闭合状态； xDSL模 块， 切换部件处于闭合状态时， 用于将普通电话业务转换为基于数据 包格式的业务传输出去。
上述实施例通过不同的切换装置的状态实现了用不同的承载网 实现了电话业务， 克服了现有的家庭网关适应业务能力比较差的缺 陷，并且还克服了现有技术因为网络侧故障而不能实现业务转换的缺 陷，同时在适应不同业务的同时不需要改变家庭电话业务系统的布线 格局， 因此大大提高了产品的适应性和稳定性。
图 3为本发明实施例三的结构示意图， 如图 3所示， 该系统具体 包括主节点 （图 3中 A )和至少一个子节点 （图 3中 B和 C ), 其中 子节点上连接有电话机和低通滤波器， 主节点进一步包括家庭网关、 高通滤波器和低通滤波器， 并且高通滤波器与家庭网关的 DSL接口 连接， 低通滤波器通过家庭网关的 FXO接口连接， 其包括。 检测模 块， 通过 FXO接口和低通滤波器与主节点连接， 用于判断主节点接 入线上是否有普通电话业务； 切换部件， 通过处理模块与检测模块连 接， 当检测模块判断出有普通电话业务时处于闲置状态， 当检测模块 判断出没有普通电话业务时处于闭合状态。 xDSL模块， 切换部件处 于闭合状态时， 用于将普通电话业务转换为基于数据包格式的业务， 并传输到包交换域。 可以将 DSL接口的下行信号转换成处理模块可 以识别的信号，同时可以将处理模块的上行数据转换成基于数据包格 式的信号， 即 xDSL协议格式的信号。 处理模块， 连接检测模块和切 换部件， 用于当检测模块判断出有普通电话业务时闲置切换部件， 当 检测模块判断出没有普通 电话业务时闭合切换部件。 FXO模块， 切 换部件处于闲置装置用于闲置状态时，用于将普通电话业务传输到电 路交换域。 M-E表示 USB模块， 可以与 USB接口连接， 能够外接打 印机或者 USB接口存储设备等， 并实现相应的功能， 关于此接口的 功能及用法在这里不再赘述。 M-F表示以太网模块， 可以与 FE/GFE 接口连接， 能够外接电脑等设备， 实现上网等业务。 M-D表示电话 模块， 与下行 POTS接口连接， 能够外接电话机， 此模块完成电话模 拟信号的釆样、 压缩、 封包等， 并把转换后的数字信号发送给处理模 块。
本发明实施例中电信局和家庭电话业务系统之间设有双绞线 ,在 该双绞线上能够承载数据业务（xDSL )和普通电话业务（PSTN ), 其中数据业务是家庭网关和电信局 （CO ) 的 DSLAM设备之间进行 信号交互的业务，普通电话业务是家庭网关和电信局交换机设备之间 进行信号交互的业务。 PSTN业务频带较低， 一般小于 4Khz, 数据业 务频带较高， 一般大于 4Khz, 因此两种业务可以同时以双绞线作为 传输介质， 并且通过对不同的业务流进行不同的滤波处理， 能够解决 不同信号之间相互干扰的问题。 如图 3所示， 在家庭电话业务中常用 的组网环境一般会有两个滤波器， 一个是高通滤波器， 可以仅使得高 频信号被通过， 同时将低频信号过滤掉； 另外一个是低通滤波器， 可 以仅使得低频信号被通过， 即普通电话业务的模拟信号， 同时将高频 信号过滤掉。 进一步的， 高通滤波器和低通滤波器既可以集成在家庭 网关里， 也可以独立于家庭网关。
与 POTS接口连接的电话机可以完成 VOIP功能， 具体流程为： 电话机发送的信号经过 M-D处理之后， 将信号传输到处理模块， 最 后经过 xDSL模块处理之后传输到电信局的 DSLAM。
与 POTS 接口连接的电话机可以完成电话断电逃生和断网 ( DSLAM故障）逃生， 其中断电逃生的业务流程具体为： 电话机发 送的信号经过切换装置直接传输到低通滤波器，并经过主节点之后传 输到电信局的交换机。 其中， 断网逃生业务流程具体为： 电话机发送 的模拟信号经过 M-D处理之后传输到处理模块， 然后再将信号传输 到 xDSL模块并经过处理之后，通过低通滤波器进行滤波并传输到电 信局的交换机。 相应业务的处理方式很多， 在这里不再——赘述。
检测模块根据 PSTN 业务的几种不同的状态来判定， 具体为： PSTN业务在挂机状态下电压一般是 48VDC,在通话状态下电流一般 大于或等于 18mA, 在振铃状态 （振岭状态） 下电压大于或等于 50Vrms。如果两线之间的电压和电流都不满足上述条件时，意味着该 家庭电话业务系统没有开通 PSTN业务。
检测模块能够检测到来自低通滤波器的信号，即可以检测出线路 上有没有 PSTN信号。 如果没有检测到 PSTN信号， 那么向处理模块 发送 Sa信号， 以说明该家庭电话业务系统没有开通普通电话业务， 仅开通了数据业务，此时处理模块根据检测模块发送的信号向切换部 件发送控制信号以控制切换部件的状态， 如闭合或闲置等。 若切换部 件处于闭合状态， 则子节点上的电话， 即其它房间里的电话， 通过该 切换部件与 POTS接口的电话短连， 此时所有电话可以拨打 VOIP电 话， 其具体流程为： 子节点上的电话机发送的信号经过低通滤波器之 后传输到切换部件 (处于闭合状态 ), 然后经过 M-D处理之后传输到 处理模块， 最后通过 xDSL模块处理之后变成基于数据包格式的数据 并承载在包交换域上， 最终被传输到电信局的 DSLAM。 若检测模块 检测出有 PSTN信号时， 切换部件处于闲置状态， 则其它房间的电话 可以直接拨打 PSTN电话， 其具体流程为： 子节点上的电话机经过该 子节点上的滤波器之后直接承载在电路交换域上并传输到电信局的 交换机上。家庭网关上连接的电话可以通过切换部件的状态既可以实 现 VOIP业务， 也可以实现 PSTN业务。
实施例三通过不同的切换装置的状态实现了用不同的承载网实 现了电话业务， 克服了现有的家庭网关适应业务能力比较差的缺陷， 并且还克服了现有技术因为网络侧故障而不能实现业务转换的缺陷， 同时在适应不同业务的同时不需要改变家庭电话业务系统的布线格 局， 因此大大提高了产品的适应性和稳定性。
本领域普通技术人员可以理解： 实现上述方法实施例的全部或部 分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于 一计算机可读取存储介质中， 该程序在执行时， 执行包括上述方法实 施例的步骤； 而前述的存储介质包括： ROM、 RAM, 磁碟或者光盘 等各种可以存储程序代码的介质。
最后应说明的是： 以上实施例仅用以说明本发明的技术方案， 而 非对其限制； 尽管参照前述实施例对本发明进行了详细的说明， 本领 域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技 术方案进行修改， 或者对其中部分技术特征进行等同替换； 而这些修 改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方 案的精神和范围。

Claims

权利要求
1、 一种语音业务处理方法， 其特征在于， 包括：
判断主节点的接入线上是否有普通电话业务；
若没有普通电话业务，则闭合位于所述主节点的接入线上的切换 部件，使得子节点上的普通电话业务通过所述切换部件传输到位于主 节点的家庭网关，由所述家庭网关将所述普通电话业务转换为基于数 据包格式的业务传输出去。
2、 根据权利要求 1所述的语音业务处理方法， 其特征在于， 所 述主节点的接入线是两根，所述判断是否有普通电话业务通过检测所 述主节点的接入线之间的电压电流而实现。
3、 根据权利要求 2所述的语音业务处理方法， 其特征在于， 检 测主节点的接入线之间的电压电流具体为：
检测所述主节点的接入线之间的电压电流，
若所述接入线之间的电压处于第一门限值，则普通电话业务处于 挂机状态；
若所述接入线之间的电流大于或等于第二门限值，则普通电话业 务处于通话状态；
若所述接入线之间的电压大于或等于第三门限值，则普通电话业 务处于振铃状态；
否则没有普通电话业务。
4、 一种语音业务处理装置， 其特征在于， 包括：
检测模块， 与主节点连接， 用于判断主节点接入线上是否有普通 电话业务；
切换部件， 当所述检测模块判断出没有普通电话业务时处于闭合 状态；
xDSL模块， 所述切换部件处于闭合状态时， 用于将所述普通电 话业务转换为基于数据包格式的业务传输出去。
5、 根据权利要求 4所述的语音业务处理装置， 其特征在于， 还 包括：
处理模块， 用于根据所述检测模块的结果， 控制所述切换部件的 状态。
6、根据权利要求 4或 5所述的语音业务处理装置， 其特征在于， 所述语音处理装置为家庭网关。
7、 一种语音业务处理系统， 包括主节点和至少一个子节点， 所 述主节点进一步包括家庭网关， 其特征在于， 所述家庭网关包括： 检测模块， 与主节点连接， 用于判断主节点接入线上是否有普通 电话业务；
切换部件， 当所述检测模块判断出没有普通电话业务时处于闭合 状态；
xDSL模块， 所述切换部件处于闭合状态时， 用于将所述普通电 话业务转换为基于数据包格式的业务传输出去。
8、 根据权利要求 7所述的语音业务处理系统， 其特征在于， 所 述家庭网关包括：
处理模块， 用于根据所述检测模块的结果， 控制所述切换部件的 状态。
9、根据权利要求 7或 8所述的语音业务处理系统， 其特征在于， 所述主节点还包括高通滤波器和低通滤波器。
10、根据权利要求 7或 8所述的语音业务处理系统，其特征在于， 所述家庭网关还包括高通滤波器和低通滤波器。
PCT/CN2009/071414 2008-04-30 2009-04-23 语音业务处理方法、装置及系统 WO2009132562A1 (zh)

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