WO2010045861A1 - 一种通过无线网络实现语音业务的方法和通信终端 - Google Patents

一种通过无线网络实现语音业务的方法和通信终端 Download PDF

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Publication number
WO2010045861A1
WO2010045861A1 PCT/CN2009/074501 CN2009074501W WO2010045861A1 WO 2010045861 A1 WO2010045861 A1 WO 2010045861A1 CN 2009074501 W CN2009074501 W CN 2009074501W WO 2010045861 A1 WO2010045861 A1 WO 2010045861A1
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WO
WIPO (PCT)
Prior art keywords
network
communication terminal
voice service
service
call
Prior art date
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PCT/CN2009/074501
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English (en)
French (fr)
Inventor
叶小玲
Original Assignee
华为终端有限公司
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 华为终端有限公司 filed Critical 华为终端有限公司
Priority to EP09821582.5A priority Critical patent/EP2346293B1/en
Publication of WO2010045861A1 publication Critical patent/WO2010045861A1/zh
Priority to US13/091,689 priority patent/US8625511B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/253Telephone sets using digital voice transmission
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066Session management
    • H04L65/1069Session establishment or de-establishment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M7/00Arrangements for interconnection between switching centres
    • H04M7/006Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
    • H04M7/0066Details of access arrangements to the networks
    • H04M7/0069Details of access arrangements to the networks comprising a residential gateway, e.g. those which provide an adapter for POTS or ISDN terminals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2207/00Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place
    • H04M2207/18Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place wireless networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/20Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W60/00Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup

Definitions

  • the present invention relates to the field of mobile communications, and more particularly to a method and a communication terminal for implementing voice services over a wireless network.
  • CPE Customer Premise Equipment
  • IAD Integrated Access Device
  • ATA Telephone Adapter
  • Ananog Telephony Adapt Ananog Telephony Adapt
  • the communication terminal provides an interface function with the core network.
  • the existing IAD is connected to the core through different data machines, such as DSL (digital subscriber line) / ATM (asynchronous transfer mode), ETH (Ethernet, Ethernet).
  • DSL digital subscriber line
  • ATM asynchronous transfer mode
  • ETH Ethernet, Ethernet
  • the CPE provides functions such as data service and voice over Internet Protocol (VoIP) to the communication terminal to the access network.
  • VoIP voice over Internet Protocol
  • IAD also supports the provision of data and voice services over the air. Because the fixed access network has enough bandwidth, it can provide a clear path for the communication terminal in the connected state. The wireless network is very valuable because the bandwidth resource is very valuable. Even if the communication terminal is online, if it is detected that the communication terminal has no actual network traffic, it should Active disconnection, so the communication terminal side needs to support the function of dial-on-demand.
  • the dial-on-demand dialing of the wireless network is mature for the data service, but for the VoIP service, the dial-on-demand dial-up is enabled, and the communication terminal providing the VoIP service maintains the connection with the server of the wireless access network.
  • the registration update message must be sent to the server periodically, otherwise the server will consider the VoIP device unavailable; secondly, if the communication terminal initiates a VoIP service call, the establishment of the radio bearer layer connection is established.
  • the inventor found that at least the following problems exist in the prior art:
  • the process of connecting the radio bearer layer is long, which may cause the communication terminal to fail; if it is to ensure the success of the VoIP service,
  • the data service is connected to the radio bearer layer, that is, the network data domain, and then the call is initiated, which is extremely inconvenient for the communication terminal and less feasible for emergency calls.
  • a dial-on-demand interrupt is connected to a network data domain domain, it will result in the inability to receive new calls.
  • VoIP service support does not enable dial-on-demand services.
  • the embodiment of the present invention provides a method and a communication terminal for implementing a voice service through a wireless network, which is used to solve the problem that the on-demand dialing function is added to the service for providing voice services to the communication terminal in the prior art. ⁇ Deficiencies in voice services.
  • a method for implementing a voice service over a wireless network comprising:
  • a communication terminal for implementing a voice service over a wireless network comprising:
  • a general telephone service unit configured to generate request information of a voice service according to an operation of the communication terminal
  • a trigger logic unit configured to generate a trigger signal according to the request information
  • a dial-on-demand unit configured to establish a network connection with the wireless network according to the trigger signal
  • the voice service unit is configured to apply for network registration, and after the network is successfully registered, make a call of the voice service through the network connection.
  • the embodiments of the present invention have the following beneficial effects, and solve the conflict between the VoIP service carried on the wireless packet switched (PS) network and the dial-on-demand function, so that the wireless bandwidth can be avoided. It also meets the needs of users to use VoIP services without any modification to the network.
  • PS wireless packet switched
  • FIG. 1 is a schematic structural diagram of an internal structure of a communication terminal according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a method according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a server according to an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of a method of a communication terminal side according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of a call forwarding method after a call-to-demand function is activated according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram 1 of a method for implementing a VoIP service on a communication terminal side according to an embodiment of the present invention
  • FIG. 7 is a second schematic diagram of a method for implementing a VoIP service on a communication terminal side according to an embodiment of the present invention.
  • the embodiment provided by the present invention is used to solve the conflict between the CPE (IAD) supporting VoIP service and the dial-on-demand function, and to meet the bandwidth requirement of the wireless access network and the VoIP requirement of the communication terminal.
  • IAD CPE
  • the unit is a communication interface for the VoIP service of the ordinary telephone through the PS network.
  • the conventional telephone can generally be understood as a fixed landline telephone used daily, also called a POT S telephone.
  • the VoIP service is a bearer mode of the voice service. Since the data packet of the VoIP service is transmitted through the PS network, that is, the data domain, the VoIP service is a voice service based on IP transmission.
  • the trigger logic unit 102 is added to determine whether the trigger condition of the on-demand dialing unit 103 is satisfied, and whether the network connection is disconnected from the dial-on-demand unit 103. The decision is made and the dial-on-demand unit 103 can be triggered to initiate a wireless network connection.
  • the IAD service module after the trigger logic unit 102 is added, the voice service unit 101 is connected and communicates with the ordinary telephone service unit 104, and the voice service unit 101 is connected to the trigger logic unit 102 and sends a request, and the trigger logic unit 102 respectively associates with the voice service.
  • the unit 101 and the ordinary telephone service unit 104 have a communication path, receive requests and signals, and have a communication path between the dial-up and dial-on-demand units 103 to send commands. Specifically include:
  • a voice service unit 101 configured to apply for network registration; and for specifically processing voice services, processing information data generated by an event from a user/ordinary phone forwarded by the ordinary telephone service unit 104, and controlling the user's The entire call process, including making a call to the network, connecting, removing the call, and so on.
  • [34] Specifically includes: packaging or decapsulating digital voice, and based on the telephone area code database data, Determine the IP address of the corresponding gateway, and add this IP address to the IP data packet, and complete the function of selecting the best routing path.
  • the compression data is compressed by using a compression algorithm, and then the voice data is packaged according to the Transmission Control Protocol/Internet Protocol (TCP/IP) standard, and the data packet is sent to the receiving place through the core network.
  • TCP/IP Transmission Control Protocol/Internet Protocol
  • the voice data packets are stringed together, and after being decompressed, the original voice signal is restored.
  • the regional telephone area code is mapped to the corresponding regional gateway IP address, and stored in a database.
  • the gateway After the communication terminal makes a call, the gateway determines the IP address of the corresponding gateway according to the telephone area code database data, and sets the IP address. Join the IP packet and select the best route to reduce the transmission delay and the IP packet to the destination gateway through the Internet. In some areas where the Internet has not been extended to or temporarily set up a gateway, routing can be set up, and the nearest gateway can be transferred through the long-distance telephone network to realize communication services.
  • the trigger logic unit 102 is configured to be based on the voice service unit 101 or / and the ordinary telephone service unit 1
  • the request or signal of 04 generates a trigger signal, and sends the trigger signal to the dial-on-demand unit 103.
  • the dial-on-demand unit 103 is configured to dial a trigger signal from the trigger logic unit 102 based on the detected.
  • the ordinary telephone service unit 104 is a necessary interface between the network and the ordinary telephone, and submits signals generated by the user/ordinary telephone, such as off-hook, dialing, flashing, hanging, sound, etc., to the voice service.
  • the unit 101 processes the same, and sends the events of the voice service unit 101, such as playback, sound, and the like, to the user/phone.
  • the general telephone service unit 104 may also include:
  • a terminal call forwarding unit 107 configured to: after establishing the network connection, generate a call forwarding operation code, the call forwarding operation code requesting to transfer a call of the voice service to a public switched telephone of the communication terminal itself
  • the network number or telecommunication network number that is, the number of the circuit bearer domain.
  • the general telephone service unit 104 may also include:
  • the terminal call transfer canceling unit 108 is configured to send a cancel call forwarding operation code to the server after the call of the voice service has been transferred.
  • P business ⁇ solves the conflict with the dial-on-demand function, so that it can not waste wireless bandwidth, It can meet the needs of users to use VoIP services.
  • the embodiment of the present invention further provides a server, as shown in FIG. 3, located in the public network, including:
  • the network connection unit 109 is configured to establish a wireless network connection with the communication terminal; specifically, a network connection of the bearer layer may be established.
  • the voice service registration unit 110 is configured to receive and complete a network registration application of the communication terminal, and receive a call of the voice service.
  • the call forwarding unit 105 is configured to transfer an incoming call of the voice service to the public switched telephone network number of the current communication terminal or its own circuit bearer after establishing a bearer layer-based network connection of the wireless network with the communication terminal.
  • the call forwarding unit 105 identifies the call forwarding operation code from the ordinary telephone service unit 104, and the identification is correct and then handed over to the voice service unit 101, by the voice service.
  • the unit 101 issues a call transfer request to the central office server in the network, and after the local office server processes the request, the call forwarding process is completed.
  • the specific types of call forwarding include:
  • PSTN Public Switched Telephone Network
  • the function of the dialing is used to set the call forwarding. Then, the home gateway terminal device sends the dialing of the ordinary telephone connected to the central office server, and after the central office server performs the call transfer processing, the subsequent outside calls the family. The number of the gateway, the central office server will be forwarded to the number 22334455, and the call will not be sent to the home gateway terminal device again.
  • the central office server also includes:
  • the call transfer canceling unit 106 is configured to cancel the call forwarding service of the communication terminal if the network call is successfully registered and the incoming call has been transferred, and if the canceled call transfer operation code of the communication terminal is received. That is, the user inputs the call transfer cancellation operation code at the terminal call transfer canceling unit 108 of the ordinary telephone service unit 104, and the communication terminal transmits the call forwarding to the central office server, and the central office server recognizes the ordinary telephone.
  • the call forwarding of the service unit 104 cancels the operation code, and the processing is performed after the identification is correct to cancel the call forwarding service.
  • the central office server cooperates with the communication terminal, establishes a wireless network connection with the communication terminal, implements the VoIP service, and after receiving the call transfer operation code, transfers the call of the communication terminal to another network, and if Upon receiving the cancel call forwarding operation code of the communication terminal, the call transfer of the communication terminal is cancelled.
  • Step A The communication terminal generates a trigger signal according to the request information of the voice service.
  • Step B Establish a network connection with the wireless network according to the trigger signal.
  • Step C Perform network registration on the voice service.
  • Step D After the network registration is successful, the call of the voice service is performed through the network connection.
  • the communication terminal establishes a network connection with the network, and the user can implement the normal VoIP service through the network connection, and the request information is generated by using the manner provided by the following embodiments of the present invention.
  • the conflict between the dial-on-demand functions makes it possible to not only waste wireless bandwidth, but also to meet the needs of users to use VoIP services without any modification to the network. Specifically, including:
  • Step 201 Using the communication terminal and inputting a specific service access code, for example *67*; the voice service unit 101 of the communication terminal is triggered to transmit the service access code.
  • a specific service access code for example *67*
  • Step 202 The trigger logic unit 102 receives the service access code, determines, according to the service access code, that the communication terminal needs to use the VoIP service, and immediately generates and sends a trigger signal.
  • Step 203 The dial-on-demand unit 103 receives the trigger signal and performs a wireless PS network connection;
  • the voice service unit 101 After the connection with the wireless PS network is successful, the voice service unit 101 is notified to perform network registration.
  • Step 204 If the communication terminal is not on-hook, after the network registration is successful, the communication terminal is prompted to use the VoIP service, and a dial tone is placed in the communication terminal.
  • Steps 201 to 204 describe that the communication terminal establishes a connection with the wireless PS network according to the need of dialing on demand. The process of picking up.
  • Step 205 After establishing the network connection, the dial-on-demand unit 103 queries the trigger logic unit 102 whether there is currently a voice service, and if so, queries again after the predetermined time interval, otherwise proceeds to step 206.
  • Step 206 In the absence of any call, the communication terminal decides to terminate the use of the VoIP service, and if there is no data service in the same period, the dial-on-demand function is enabled.
  • Step 301 Through the network service located at the communication terminal, the communication terminal is preset to be enabled on the dial-on-demand dialing ⁇
  • PSTN Public Switched Telephone
  • Step 303 After the VoIP service is successfully registered, the call forwarding can be canceled according to the configuration option, and the call forwarding operation code can be sent to the network.
  • the IAD service module receives a specific service access code, for example, *67*;
  • the service access code is sent to the trigger logic unit 102; the trigger logic unit 102 receives the service access code, according to the The service access code determines that the communication terminal needs to use the VoIP service, and immediately sends a trigger signal to the dial-on-demand unit 103; the dial-on-demand unit 103 receives the trigger signal to perform a wireless PS network connection; after successfully connecting with the wireless PS network, The dial-on-demand unit 103 notifies the voice service unit 101 to perform network registration.
  • a specific service access code for example, *67*
  • the service access code is sent to the trigger logic unit 102; the trigger logic unit 102 receives the service access code, according to the The service access code determines that the communication terminal needs to use the VoIP service, and immediately sends a trigger signal to the dial-on-demand unit 103; the dial-on-demand unit 103 receives the trigger signal to perform a wireless PS network connection; after successfully connecting with the wireless PS
  • dial-on-demand unit 103 After the network connection is established, if the dial-on-demand function needs to be activated, the dial-on-demand unit 103 queries the trigger logic unit 102 whether there is currently a voice service, and if there is no voice service, the dial-on-demand unit 103 starts. Dial-on-demand feature.
  • Step 401 Using the communication terminal and having picked up the phone to prepare for dialing, the ordinary telephone service unit 104 is triggered to generate a corresponding off-hook command and transmit.
  • Step 402. The trigger logic unit 102 receives the off-hook command, and determines that the communication terminal needs to use the VoIP service according to the off-hook command, and immediately sends a trigger signal.
  • Step 403. The dial-on-demand unit 103 receives the trigger signal and performs a wireless PS network connection;
  • the voice service unit 101 After the connection with the wireless PS network is successful, the voice service unit 101 is notified to perform network registration.
  • Step 404 If the communication terminal is not on-hook, after the network registration is successful, the communication terminal is prompted to use the VoIP service, and a dial tone is placed in the communication terminal.
  • Step 401. to Step 404. Describes a process in which the communication terminal establishes a connection with the wireless PS network according to the action of preparing for dialing by off-hook, and implements an alternative to the VoIP service, and solves the conflict between the dial-on-demand functions. , so that it can not waste wireless bandwidth.
  • Step 501 Using the communication terminal and having picked up the phone and having started dialing, the ordinary telephone service unit 104 is triggered to generate a corresponding off-hook command and transmit.
  • Step 502. After the trigger logic unit 102 receives several numbers dialed in advance, analyze the numbers, and root According to the numbers, it is determined that the communication terminal needs to use the VoIP service, and the trigger signal is immediately transmitted.
  • Step 503. The dial-on-demand unit 103 receives the trigger signal and performs a wireless PS network connection;
  • the voice service unit 101 is notified to perform network registration.
  • SIP Session Initiation Protocol
  • Steps 501. to 504. Describe the process in which the communication terminal establishes a connection with the wireless PS network according to the off-hook of the communication terminal and has started the dialing operation, which is another alternative solution for implementing the VoIP service.
  • the conflict between the dial-on-demand functions enables both wireless bandwidth to be wasted.
  • the present invention can be implemented by hardware, or can be realized by means of software plus necessary general hardware platform, the present invention.
  • the technical solution can be embodied in the form of a software product, which can be stored in a computer readable storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), and includes a plurality of instructions for making a computer device (may be a personal computer, server, or network device, etc.) Perform the methods described in various embodiments of the present invention.

Abstract

本发明提供一种通过无线网络实现语音业务的方法和通信终端,其中方法包括:根据语音业务对应的业务接入码生成请求信息,由所述请求信息生成触发信号;根据所述触发信号,与无线网络建立网络连接;对所述语音业务进行网络注册;在所述网络注册成功后,通过所述网络连接进行所述语音业务的呼叫。应用本发明提供的技术,解决VoIP业务承载于无线分组交换网络之上时,与按需拨号功能之间的冲突,使得即能够满足无线带宽不浪费的需求,也可满足用户随时使用VoIP业务的需求,而且不需要对网络端进行任何修改。

Description

说明书
Title of Invention:一种通过无线网络实现语音业务的方法和通信终 端
[1] 本申请要求了 2008年 10月 21日提交的、 申请号为 200810224607.2、 发明名称为" 一种通过无线网络实现语音业务的方法和通信终端"的中国申请的优先权, 其全 部内容通过引用结合在本申请中。
[2] 技术领域
[3] 本发明涉及移动通信领域, 特别是指一种通过无线网络实现语音业务的方法和 通信终端。
[4] 发明背景
[5] 客户前端设备 (CPE, Customer Premise Equipment)是相对于局端设备而言的前 端设备, 例如综合接入设备 (IAD , Integrated Access Device)、 电话适配器 (ATA , Ananog Telephony Adapt)等, 为通信终端提供与核心网络的接口功能。 在家庭 网络中, 现有的 IAD通过不同的数据机,例如, DSL (digital subscriber line, 数字 用户线) /ATM (asynchronous transfer mode, 异步转移模式) 、 ETH (Ethernet , 以太网) 接入到核心网络, CPE向接入网络为通信终端提供数据业务、 语音业 务 (VoIP, Voice over Internet Protocol)等功能。
[6] 随着核心网络的融合, 终端需支持通过多种不同的边缘网络接入到核心网络中
, 因此 IAD也支持通过无线方式提供数据、 语音业务。 固定接入网络由于带宽足 够多, 可以为处于连接状态的通信终端提供畅通的通路; 而无线网络因带宽资 源非常宝贵, 即使通信终端在线, 如果检测到通信终端并无实际上网业务流量 , 则应主动断幵, 因此通信终端侧需支持按需拨号的功能。 现有技术中, 无线 网络的按需拨号对于数据业务的应用比较成熟, 但是对于 VoIP业务, 启用按需 拨号吋, 提供 VoIP业务的通信终端为保持与无线接入网络的服务器之间的连接 , 必须定期向服务器发送注册更新消息, 否则服务器就会认为该 VoIP设备不可 用; 其次, 如果在通信终端发起 VoIP业务呼叫吋, 进行无线承载层连接的建立
, 以及重新注册过程, [7] 发明人在实现本发明的过程中, 发现现有技术中至少存在如下问题: 由于进行 无线承载层连接的过程较长, 可能导致通信终端呼叫失败; 如果想确保 VoIP业 务成功, 则需要先通过数据业务与无线承载层, 即网络数据域建立连接, 然后 发起呼叫, 这对于通信终端来说, 使用极不方便, 而且对于紧急呼叫更不可行 。 按需拨号中断与网络数据域域连接后, 将导致无法接收新呼叫。 甚至有的无 线网络运营中, 在 VoIP业务支持吋尽量不启用按需拨号业务。
[8] 发明内容
[9] 本发明实施例提供一种通过无线网络实现语音业务的方法和通信终端, 用于解 决现有技术中, 在为通信终端提供语音业务的服务中增加按需拨号功能所导致 的无法及吋实现语音业务的缺陷。
[10] 一种通过无线网络实现语音业务的方法, 包括:
[11] 根据对通信终端的操作生成语音业务的请求信息, 由所述请求信息生成触发信 号;
[12] 根据所述触发信号, 与无线网络建立网络连接;
[13] 对所述语音业务进行网络注册;
[14] 在所述网络注册成功后, 通过所述网络连接进行所述语音业务的呼叫。
[15] 一种通过无线网络实现语音业务的通信终端, 包括:
[16] 普通电话服务单元, 用于根据对通信终端的操作生成语音业务的请求信息;
[17] 触发逻辑单元, 用于根据所述请求信息生成触发信号;
[18] 按需拨号单元, 用于根据所述触发信号与无线网络建立网络连接;
[19] 语音业务单元, 用于申请网络注册, 并在所述网络注册成功后, 通过所述网络 连接进行所述语音业务的呼叫。
[20] 本发明的实施例具有以下有益效果, 解决 VoIP业务承载于无线分组交换 (PS, P acket Switched)网络之上吋, 与按需拨号功能之间的冲突, 使得既能够不浪费无 线带宽, 也可满足用户随吋使用 VoIP业务的需求, 而且不需要对网络进行任何 修改。
[21] 附图简要说明
[22] 图 1为本发明实施例通信终端内部结构示意图; [23] 图 2为本发明实施例方法的流程示意图;
[24] 图 3为本发明实施例服务器结构示意图;
[25] 图 4为本发明实施例通信终端一侧方法流程示意图;
[26] 图 5为本发明实施例启动了按需拨号功能之后进行呼叫转移方法流程示意图; [27] 图 6为本发明实施例通信终端一侧实现 VoIP业务方法示意图一;
[28] 图 7为本发明实施例通信终端一侧实现 VoIP业务方法示意图二。
[29] 实施本发明的方式
[30] 为使本发明的目的、 技术特征和实施效果更加清楚, 下面将结合附图及具体实 施例对本发明的技术方案进行详细描述。 本发明提供的实施例, 用于为解决 CPE (IAD)支持 VoIP业务吋, 与按需拨号功能冲突提供解决方案, 兼顾无线接入网络 带宽需求和通信终端使用 VoIP的需要。
[31] 釆用通过普通电话服务 (POTS , Plain Old Telephone Service)话机触发的方法, 在通信终端需要使用 VoIP业务吋, 通过普通电话先触发 IAD进行无线 PS网络连 接, 然后进行 VoIP呼叫, 而 POTS单元则是普通电话通过 PS网络实现 VoIP业务的 通信接口。 所述普通电话通常可以理解为日常所用的固定座机电话, 也称为 POT S话机。 VoIP业务属于语音业务的一种承载方式, 由于 VoIP业务的数据包通过 PS 网络, 即数据域, 进行传输, 因此 VoIP业务是基于 IP传输的一种语音业务。
[32] 如图 1所示, 在已有的 IAD业务模块中, 增加触发逻辑单元 102, 用于判断按需 拨号单元 103的触发条件是否满足, 向按需拨号单元 103提供是否断幵网络连接 的决策, 并可触发按需拨号单元 103启动无线网络连接。 增加所述触发逻辑单元 102之后的 IAD业务模块, 语音业务单元 101与普通电话服务单元 104连接并通信 , 且语音业务单元 101与触发逻辑单元 102连接并发送请求, 触发逻辑单元 102分 别与语音业务单元 101和普通电话服务单元 104之间有通信通路, 接收请求和信 号, 并同吋与按需拨号单元 103之间有通信通路, 发送指令。 具体包括:
[33] 语音业务单元 101, 用于申请网络注册; 并且用于具体处理语音业务, 对由普 通电话服务单元 104转发的来自用户 /普通电话的事件所产生的信息数据进行处理 , 并控制用户的整个通话过程, 包括向网络发起呼叫、 接续、 拆除呼叫等。
[34] 具体包括: 对数字语音打包封装或者解封装, 同吋根据电话区号数据库资料, 确定相应网关的 IP地址, 并将此 IP地址加入 IP数据包中, 同吋完成选择最佳 路由路径等功能。 使用压缩算法对语音数据编码进行压缩处理, 然后把这些语 音数据按传输控制协议 /网间协议 (TCP/IP, Transmission Control Protocol/Internet Protocol)标准进行打包, 经过核心网络把数据包送至接收地; 或者在接到所述 数据包后, 把这些语音数据包串起来, 经过解压处理后, 恢复成原来的语音信 号。 进一步地, 把各地区电话区号映射为相应的地区网关 IP地址, 并存放在一 个数据库中, 在通信终端拨打电话吋, 网关根据电话区号数据库资料, 确定相 应网关的 IP地址, 并将此 IP地址加入 IP数据包中, 同吋选择最佳路由, 以减 少传输吋延, IP数据包经 Internet到达目的地的网关。 在一些 Internet尚未延伸 到或暂吋未设立网关的地区, 可设置路由, 由最近的网关通过长途电话网转接 , 实现通信业务。
[35] 触发逻辑单元 102, 用于根据来自语音业务单元 101或者 /和普通电话服务单元 1
04的请求或者信号, 生成触发信号, 发送所述触发信号给按需拨号单元 103。
[36] 按需拨号单元 103, 用于根据检测到的来自所述触发逻辑单元 102的触发信号拨 号。
[37] 普通电话服务单元 104, 是网络和普通电话之间的必要接口, 将用户 /普通电话 触发的事件, 例如摘机、 拨号、 拍叉、 挂机、 声音等所产生的信号提交给语音 业务单元 101处理, 同吋也将语音业务单元 101的事件, 例如放音、 声音等信号 发送给用户 /话机。
[38] 普通电话服务单元 104还可以包括:
[39] 终端呼叫转移单元 107, 用于当建立所述网络连接之后, 生成呼叫转移操作码 , 所述呼叫转移操作码申请将所述语音业务的呼叫转移到所述通信终端自身的 公共交换电话网络号码或者电信网号码, 即电路承载域的号码。
[40] 普通电话服务单元 104还可以包括:
[41] 终端呼叫转移取消单元 108, 用于当所述语音业务的呼叫已经被转移后, 向服 务器发送取消呼叫转移操作码。
[42] 应用以上实施例提供的通信终端 (即 CPE) , 当通信终端通过无线 PS网络实现 Vol
P业务吋, 解决了与按需拨号功能之间的冲突, 使得既能够不浪费无线带宽, 也 可满足用户随吋使用 VoIP业务的需求。
[43] 与通信终端对应地, 本发明实施例还提供了一种服务器, 如图 3所示, 位于公 共网络中, 包括:
[44] 网络连接单元 109, 用于与通信终端建立无线的网络连接; 具体可以建立承载 层的网络连接。
[45] 语音业务注册单元 110, 用于接收并完成所述通信终端的网络注册申请, 并接 收语音业务的呼叫。
[46] 呼叫转移单元 105, 用于当与通信终端建立无线网络的基于承载层的网络连接 之后, 将语音业务的来电呼叫转移到当前的通信终端自身的公共交换电话网络 号码或者自身的电路承载域的相应的号码或者其他号码。 即: 用户在普通电话 服务单元 104输入呼叫转移操作码, 此吋, 呼叫转移单元 105识别来自普通电话 服务单元 104的呼叫转移操作码, 识别正确后交给所述语音业务单元 101, 由语 音业务单元 101向网络中的局端服务器发出呼叫转移请求, 本局端服务器处理请 求之后, 就完成了呼叫转移的处理。 呼叫转移的具体类型包括:
[47] 1.如果通信终端支持公用电话交换网络 (PSTN, Public Switched Telephone Network)线路, 转移至 IAD自身支持的 PSTN号码;
[48] 2.转移至 IAD自身的电路承载域 (CS, Circuit Switched)的号码, 即电信网号码;
[49] 3·转移至其他的号码。
[50] 例如, 在普通电话服务单元 104的终端呼叫转移单元 107中输入 "**51*22334455
#", 这串拨号的作用是用来设置呼叫转移的, 则家庭网关终端设备将其下挂的普 通话机的拨号送到局端服务器, 局端服务器进行呼叫转移处理之后, 后续外面 要呼叫家庭网关的号码, 局端服务器会转给号码 22334455, 而不会把呼叫再次 送到所述家庭网关终端设备。
[51] 局端服务器还包括:
[52] 呼叫转移取消单元 106, 用于当所述网络注册成功, 且来电呼叫已经被转移吋 , 如果接到通信终端的取消呼叫转移操作码, 则取消该通信终端的呼叫转移业 务。 即, 用户在普通电话服务单元 104的终端呼叫转移取消单元 108输入呼叫转 移取消操作码, 由通信终端发送到局端服务器, 局端服务器识别来自普通电话 服务单元 104的呼叫转移取消操作码, 识别正确后进行处理以取消呼叫转移业务
[53] 局端服务器与通信终端配合, 与通信终端建立无线的网络连接, 实现 VoIP业务 , 并在接到呼叫转移操作码之后, 将对所述通信终端的呼叫转移到其他网络进 行, 而且如果接到通信终端的取消呼叫转移操作码, 则取消该通信终端的所述 呼叫转移。
[54] 为进一步揭示本发明的技术方案, 以下介绍一个完整的业务流程; 当用户需要 进行 VoIP业务吋, 在通信终端进行相应的操作, 这一操作产生了业务接入码, 该业务接入码生成了请求信息。 如图 4所示, 包括:
[55] 步骤 A.通信终端根据语音业务的请求信息生成触发信号。
[56] 步骤 B.根据所述触发信号, 与无线网络建立网络连接。
[57] 步骤 C.对所述语音业务进行网络注册。
[58] 步骤 D.在所述网络注册成功后, 通过所述网络连接进行所述语音业务的呼叫。
[59] 通过以上步骤, 通信终端与网络建立了网络连接, 通过该网络连接, 用户就可 以实现正常的 VoIP业务, 且由于釆用了以下本发明实施例提供的方式生成所述 请求信息, 解决了按需拨号功能之间的冲突, 使得既能够不浪费无线带宽, 也 可满足用户随吋使用 VoIP业务的需求, 而且不需要对网络进行任何修改。 具体 包括:
[60] 在 IAD无数据业务, 按需拨号启用的情况下, IAD已和无线 PS网络断开。
[61] 步骤 201.使用通信终端并输入特定的业务接入码, 例如 *67*; 通信终端的语音 业务单元 101被触发, 将所述业务接入码发送。
[62] 步骤 202.触发逻辑单元 102接到业务接入码, 根据该业务接入码判断通信终端 需要使用 VoIP业务, 立即生成并发送触发信号。
[63] 步骤 203.按需拨号单元 103接到所述触发信号, 进行无线 PS网络连接;
[64] 在与无线 PS网络连接成功后, 通知语音业务单元 101, 进行网络注册。
[65] 步骤 204.如果通信终端未挂机, 那么在网络注册成功后, 向通信终端提示可使 用 VoIP业务, 并在通信终端放拨号音。
[66] 步骤 201〜步骤 204描述了通信终端根据按需拨号的需要, 与无线 PS网络建立连 接的过程。
[67] 步骤 205.在建立网络连接之后, 按需拨号单元 103向触发逻辑单元 102査询当前 是否有语音业务, 如果存在则在预定吋间间隔之后, 再次査询, 否则转步骤 206
[68] 因为可能存在通信终端通话但用户暂吋离开的情况, 因此进行査询。
[69] 步骤 206.在无任何呼叫的情况下, 通信终端决定终止使用 VoIP业务, 同吋一段 吋间内亦无数据业务, 则按需拨号功能启用。
[70] 以上描述了触发按需拨号功能的详细流程, 以及按需拨号功能自行启用的详细 流程; 解决了按需拨号功能之间的冲突, 使得既能够不浪费无线带宽, 也可满 足用户随吋使用 VoIP业务的需求, 而且不需要对现有无线网络进行任何修改。
[71] 在实际应用中, 如果通信终端启动了按需拨号功能, 则需要对接收对方呼叫的 业务逻辑进行改进, 如图 5所示, 具体包括:
[72] 按需拨号启用后, 由于与 PS网络的中断, VoIP信令无法送至 IAD, IAD可支持 如下步骤:
[73] 步骤 301.通过位于通信终端的网络服务, 通信终端预先设置在按需拨号启用吋
, 将 VoIP电话呼叫转移到其他号码; 可以选择:
[74] 1.如果通信终端如果支持公用电话交换网络 (PSTN, Public Switched Telephone
Network)线路, 转移至 IAD自身支持的 PSTN号码;
[75] 2.转移至 IAD自身的电信网号码, 即电路承载域的号码;
[76] 3.转移至其他的号码。
[77] 呼叫转移业务需局端服务器支持, 并且确认通信终端已开通此项业务。
[78] 步骤 302.在按需拨号功能启用吋, 断开与网络的连接之前, IAD将根据上述设 置将 VoIP呼叫转移, 向网络发送呼叫转移业务操作码。
[79] 步骤 303. VoIP业务注册成功吋, 可根据配置选项, 取消呼叫转移, 向网络发送 呼叫转移操作码。
[80] 与步骤 201〜步骤 206和步骤 301〜步骤 303所描述的对应, 本发明提供的 IAD业 务模块, 普通电话服务单元 104接收到特定的业务接入码, 例如 *67*; 将所述业 务接入码发送给触发逻辑单元 102; 触发逻辑单元 102接到业务接入码, 根据该 业务接入码判断通信终端需要使用 VoIP业务, 立即发送触发信号给按需拨号单 元 103; 按需拨号单元 103接到所述触发信号, 进行无线 PS网络连接; 在与无线 P S网络连接成功后, 按需拨号单元 103通知语音业务单元 101, 进行网络注册。
[81] 在建立网络连接之后, 如果需要启动按需拨号功能, 则按需拨号单元 103向触 发逻辑单元 102査询当前是否有语音业务, 并在没有语音业务吋, 由按需拨号单 元 103启动按需拨号功能。
[82] 应用以上步骤 301〜步骤 303的技术方案, 实现了通信终端的呼叫转移业务功能
[83] 在通信终端根据按需拨号的需要, 与无线 PS网络建立连接的过程中, 并不仅仅 存在步骤 201〜步骤 204所描述的这一种方式, 以下选择其他实施例进行描述:
[84] 在 IAD无数据业务, 按需拨号启用的情况下, IAD已和无线 PS网络断开, 如图 6 所示, 包括:
[85] 步骤 401.使用通信终端并已经摘机准备拨号, 普通电话服务单元 104被触发, 生成对应的摘机指令并发送。
[86] 步骤 402.触发逻辑单元 102接到摘机指令, 根据该摘机指令判定通信终端需要 使用 VoIP业务, 立即发送触发信号。
[87] 步骤 403.按需拨号单元 103接到所述触发信号, 进行无线 PS网络连接;
[88] 在与无线 PS网络连接成功后, 通知语音业务单元 101, 进行网络注册。
[89] 步骤 404.如果通信终端未挂机, 那么在网络注册成功后, 向通信终端提示可使 用 VoIP业务, 并在通信终端放拨号音。
[90] 步骤 401.〜步骤 404.描述了通信终端根据摘机准备拨号的动作, 与无线 PS网络建 立连接的过程, 实现 VoIP业务的一种替代方案, 解决了按需拨号功能之间的冲 突, 使得既能够不浪费无线带宽。
[91] 在 IAD无数据业务, 按需拨号启用的情况下, IAD已和无线 PS网络断开, 如图 7 所示, 包括:
[92] 步骤 501.使用通信终端并已经摘机并已经开始拨号, 普通电话服务单元 104被 触发, 生成对应的摘机指令并发送。
[93] 步骤 502.触发逻辑单元 102接到预先拨号的若干个号码后, 分析这些号码, 根 据该些号码判定通信终端需要使用 VoIP业务, 立即发送触发信号。
[94] 步骤 503.按需拨号单元 103接到所述触发信号, 进行无线 PS网络连接;
[95] 在与无线 PS网络连接成功后, 通知语音业务单元 101, 进行网络注册。
[96] 步骤 504.如果通信终端未挂机, 那么在网络注册成功后, 向网络发起会话启动 协议 (SIP, Session Initiation Protocol)呼叫;
[97] 如果接入网络及注册过程吋间超过一定吋长, 可向通信终端使用语音或音乐提 示, 例如"正在接入网络, 请稍侯"、 "正在向服务器注册, 请稍侯"、 "正在接续 中, 请稍侯"。 或者, 向通信终端提示可使用 VoIP业务, 并在通信终端放拨号音
[98] 步骤 501.〜步骤 504.描述了通信终端根据通信终端的摘机并已经开始了拨号的动 作吋, 与无线 PS网络建立连接的过程, 是实现 VoIP业务的另一种替代方案, 解 决了按需拨号功能之间的冲突, 使得既能够不浪费无线带宽。
[99] 应用本发明实施例提供的技术方案, 在通信终端与无线 PS网络断开吋, 釆用 P OTS话机触发、 外部交换站 (FXS, Foreign Exchange Station)摘机触发或者用户拨 号后触发等方式, 实现 IAD与无线 PS网络的连接; 并且, 按需拨号启用之后, 在 通信终端与 PS网络断开前, 进行呼叫转移, 确保用户能接收 VoIP电话; 并且在 V oIP业务注册成功之后, 如 VoIP已被转移且需要取消, 则向网络发送取消呼叫转 移操作码。 应用本发明给出的实施例, 用于解决 VoIP业务承载于无线 PS网络之 上吋, 与按需拨号功能之间的冲突, 使得即能够满足无线带宽不浪费的需求, 也可满足用户随吋使用 VoIP业务的需求。
[100] 通过以上的实施方式的描述, 本领域的技术人员可以清楚地了解到本发明可以 通过硬件实现, 也可以可借助软件加必要的通用硬件平台的方式来实现基于这 样的理解, 本发明的技术方案可以以软件产品的形式体现出来, 该软件产品可 以存储在一个计算机可读存储介质 (可以是 CD-ROM, U盘, 移动硬盘等) 中, 包括若干指令用以使得一台计算机设备 (可以是个人计算机, 服务器, 或者网 络设备等) 执行本发明各个实施例所述的方法。
[101] 以上所述, 仅为本发明较佳的具体实施方式, 但本发明的保护范围并不局限于 此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可轻易想到 的变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明的保护范围 应该以权利要求的保护范围为准。

Claims

权利要求书
一种通过无线网络实现语音业务的方法, 其特征在于, 包括: 根据对通信终端的操作生成语音业务的请求信息, 由所述请求信 息生成触发信号;
根据所述触发信号, 与无线网络建立网络连接;
对所述语音业务进行网络注册;
在所述网络注册成功后, 通过所述网络连接进行所述语音业务的 呼叫。
根据权利要求 1所述的方法, 其特征在于, 所述根据对通信终端的 操作生成请求信息, 进一步包括:
根据业务接入码生成所述请求信息。
根据权利要求 1所述的方法, 其特征在于, 所述根据对通信终端的 操作生成请求信息, 进一步包括:
根据对通信终端的操作信号生成所述请求信息。
根据权利要求 1所述的方法, 其特征在于, 所述根据对通信终端的 操作生成请求信息, 进一步包括:
根据通信终端的拨号号码生成所述请求信息。
根据权利要求 1所述的方法, 其特征在于, 所述的与无线网络建立 网络连接之后, 还包括:
申请将所述语音业务的来电呼叫转移到所述通信终端自身的公共 交换电话网络号码或者电信网号码。
根据权利要求 5所述的方法, 其特征在于, 所述将所述语音业务的 来电呼叫转移到所述通信终端自身的公共交换电话网络号码或者 其他号码之后, 还包括:
向服务器申请取消呼叫转移。
一种通过无线网络实现语音业务的通信终端, 其特征在于, 包括 普通电话服务单元, 用于根据对通信终端的操作生成语音业务的 请求信息;
触发逻辑单元, 用于根据所述请求信息生成触发信号; 按需拨号单元, 用于根据所述触发信号与无线网络建立网络连接 语音业务单元, 用于申请网络注册, 并在所述网络注册成功后, 通过所述网络连接进行所述语音业务的呼叫。
[Claim 8] 根据权利要求 7所述的通信终端, 其特征在于, 所述普通电话服务 单元还包括:
终端呼叫转移单元, 用于当建立所述网络连接之后, 发送呼叫转 移操作码, 所述呼叫转移操作码用于申请将所述语音业务的呼叫 转移到所述通信终端自身的公共交换电话网络号码或者电信网号 码。
[Claim 9] 根据权利要求 7所述的通信终端, 其特征在于, 所述普通电话服务 单元还包括:
终端呼叫转移取消单元, 用于当所述语音业务的呼叫已经被转移 后, 向服务器发送取消呼叫转移操作码。
PCT/CN2009/074501 2008-10-21 2009-10-21 一种通过无线网络实现语音业务的方法和通信终端 WO2010045861A1 (zh)

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