WO2006066506A1 - Dispositif et procede pour fournir un acces voix - Google Patents

Dispositif et procede pour fournir un acces voix Download PDF

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Publication number
WO2006066506A1
WO2006066506A1 PCT/CN2005/002270 CN2005002270W WO2006066506A1 WO 2006066506 A1 WO2006066506 A1 WO 2006066506A1 CN 2005002270 W CN2005002270 W CN 2005002270W WO 2006066506 A1 WO2006066506 A1 WO 2006066506A1
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WIPO (PCT)
Prior art keywords
voice
user terminal
fixed station
voice service
network
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PCT/CN2005/002270
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English (en)
French (fr)
Inventor
Quanzhong Gao
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Huawei Technologies Co., Ltd.
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Publication of WO2006066506A1 publication Critical patent/WO2006066506A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/26Network addressing or numbering for mobility support
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements, protocols or services for addressing or naming
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements, protocols or services for addressing or naming
    • H04L61/09Mapping addresses
    • H04L61/25Mapping addresses of the same type
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W80/00Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/04Network layer protocols, e.g. mobile IP [Internet Protocol]

Definitions

  • the present invention relates to the field of network communication technologies, and in particular, to an apparatus and method for providing voice access.
  • the CDMA 20001x EX-DO system or CDMA 20001x system can exceed 2Mbps and throughput exceeds 700kbps, which is comparable to wired DSL (Digital Subscriber Line) services.
  • the above systems can also support applications with more stringent speed requirements. Such as image transmission, large file downloads, etc. Therefore, the system can satisfy users who wish to obtain faster or larger capacity data processing services.
  • the network architecture of the existing CDMA 20001x EX-DO system or CDMA 20001x system is shown in Figure 1, AT (end user) through BTS/AP (base station/wireless access point), and BSC/PCF (base station controller/port) And the core function part) access to the PDSN (Packet Data Service Node) to carry out various services, including VOIP (voice over IP) services.
  • AT end user
  • BTS/AP base station/wireless access point
  • BSC/PCF base station controller/port
  • PDSN Packet Data Service Node
  • VOIP Voice over IP
  • an AT can only have one IP address, that is, it can only support one user to initiate a voice call.
  • each time slot (1.66667ms) can only serve one user.
  • the V0IP service requires strict delay.
  • the industry generally uses 20ms per frame or 30ms per frame to transmit data. Therefore, the system is required to send one frame of data per user per average frame time. Otherwise, it will cause a large delay or jitter.
  • the air forward channel of the CDMA 20001x EX-D0 system or the CDMA 2 OOOlx system within 30ms has only 18 time slots. According to the average transmission time per frame per user, it is 2 time slots. 9 V0IP users; if calculated according to the 20ms frame, the maximum can only support six users, such a number of users obviously can not meet the communication needs.
  • the user side cache should not be larger than 60ms. In the 60ms cache case, one user end packet is sent every 36s lot s (slot), and each packet contains two. 30ms speech frame or three 20ms speech frames, ideal In the case, the maximum number of users that can be supported is 18, and in practical applications, it can support about 13 - 14 users.
  • a device for providing voice access comprising:
  • Fixed station used to send the address converted voice service to the system, and send the voice service received from the system to the network address translation module;
  • the network address translation module is configured to perform address translation on the voice service sent by the user terminal device, and then send the voice service to the fixed station, and then perform the address conversion on the voice service sent by the fixed station to the corresponding user terminal device.
  • the device also includes:
  • Integrated access device Connected between the network address translation module and the user terminal device to implement call processing for voice VOIP services based on Internet Protocol.
  • the integrated access device and/or the network address translation module may be built in the fixed station or set independently of the fixed station, and the network address translation module may have a network address translation-public address translation NAT-PAT function. Router or device that can perform port number multiplexing.
  • the fixed station is a fixed wireless local terminal device.
  • the fixed station, the network address translation module, and the integrated access device may be physical devices or logical entities, respectively.
  • the present invention also provides a method for voice access based on the foregoing apparatus, including:
  • Each user terminal device passes the network based on the private network IP address or port number information.
  • the network address conversion module accesses the system to carry out voice services.
  • the fixed station when the user terminal sends a voice service to the network side, the fixed station performs address translation on the voice service to be sent of each user terminal, and then multiplexes it into a system in a data packet.
  • the fixed station determines the private network IP address information of the user terminal that receives the voice service according to the destination address information of the voice service sent by the network side and/or the port information entering the fixed station. Or port number information;
  • the method further includes:
  • the user terminal realizes call registration or establishment operation of the VOIP service through the integrated access device IAD.
  • the method further includes:
  • the access registration process of each user terminal is implemented by the integrated access device, and the charging and/or service quality processing is implemented in conjunction with the softswitch part of the network side.
  • the method is applicable to a CDMA 20001 X EX-DO system or a CDMA 20001x system. It can be seen from the technical solution provided by the present invention that the number of VOIP users that are being called by each sector is greatly improved, and theoretically can reach about 4 times of the number of users that can be supported, with the throughput being 400k, each VOIP user call includes header compression and the bandwidth is about 5k after the mute is turned on, for example, up to 80 users.
  • the WLL fixed station is provided with the highest priority to ensure that the access and voice delay are sufficiently small to meet the specified delay index requirements.
  • the technical solution provided by the present invention costs about 300 yuan per end user (ordinary telephone), and at the same time saves the wiring cost of the last mile (currently the last mile of the fixed network wiring cost) Each user is about 500 yuan).
  • This technical solution is completely based on the packet domain implementation, and the networking is flexible, regardless of geographical and wiring restrictions. It can support both voice services and partial data services.
  • the present invention is applicable to IP public telephone supermarkets, intensive urban area replenishment demand, the last mile access difficulty area, and the community access voice with high access cost in the urban area.
  • Figure 1 is a schematic diagram of the networking structure of a CDMA 20001x EX-DO system or a CDMA 20001x system;
  • FIG. 2 is a schematic structural view of an apparatus according to an embodiment of the present invention.
  • FIG. 3 is a flow chart of a method in accordance with an embodiment of the present invention.
  • the present invention can be applied to a CDMA 20001x EX-DO system or a CDMA 20001 x system.
  • DO system the CDMA 20001 x EX-DO system
  • a corresponding NAT-PAT module is arranged under the fixed station of the DO system, so that the user terminal under the fixed station can access the DO system by using the private network address to carry out corresponding voice service, thereby increasing the number of VOIP user terminals that the DO system can support. And can significantly reduce the cost of each end user in the system. That is, it is connected or integrated in the fixed station of the DO system.
  • a small router supporting multi-user multiplexing (which can be NAT-PT multiplexed or multiplexed by port number).
  • the specific implementation of the device in the present invention is as shown by the dashed box in FIG. 2, and specifically includes: a fixed station: configured to send the address translated voice service to the DO system, and send the voice service received from the D system. Give a network address translation module;
  • the fixed station is a fixed wireless terminal device, can support multiple calls, and can support data service access functions, so as to ensure that multiple user terminals capable of performing VOIP services can be connected;
  • the network address translation module is configured to perform address translation on the voice service sent by the user terminal, and then send the voice service to the fixed station, and then perform the address conversion on the voice service sent by the fixed station, and then send the voice service to the corresponding user terminal device;
  • the network address translation module may be a router with a NAT-PAT (Network Address Translation-Public Network Address Translation) function, or a device for port number multiplexing, and may be integrated in the port number multiplexing mode.
  • Integrated access device IAD thereby implementing conversion processing between the private network IP address of the user terminal and the public network IP address, so that more public network IP addresses can be used to support more user terminals;
  • Integrated access device IAD connected between the network address translation module and the user terminal device,
  • the call processing operation of the voice protocol VOIP service based on the Internet Protocol is implemented, and the voice encoding format conversion and the like are implemented.
  • the VOIP voice can be converted into an audio code that can be recognized by the user terminal.
  • the IAD device can automatically provide each user with the existing Eudemon (similar to the gatekeeper function, and provide the private network IP address and the IP of the public network. Registration of signaling and voice interaction between addresses.
  • the Eudemon can connect the telephone users (IP supermarkets, cell access, etc., Internet cafes, etc.) under the IAD to the NGN network of the operator, provide session service registration and NAT traversal for Internet users, and provide signaling proxy and media forwarding support for the session service. (that is, the PSTN communicates with the IP network), and the softswitch center completes the billing processing and QoS (Quality of Service) processing.
  • the softswitch center performs VOIP call processing, and can handle VOIP call signaling (such as SIP, H.323 MGCP, etc.) and media stream relay, media stream bypass and other functions.
  • the IAD device can be connected to a plurality of user terminals (ie, ordinary telephones), and the number of connections can be related to user requirements, channel conditions of the DO system, and device support capabilities;
  • a plurality of user terminal devices respectively, terminal voice devices for transmitting and receiving voice services, each user terminal is assigned a private network IP address, and occupies one application port of the fixed station.
  • the integrated access device and/or the network address translation module may be built in the fixed station or set independently of the fixed station, that is, the logic implemented NAT-PAT may be built in the fixed station.
  • the logic implemented NAT-PAT may be built in the fixed station.
  • the fixed station, the network address translation module, and the integrated access device may be physical devices or logical entities, respectively.
  • a specific implementation manner of the method for voice access based on the foregoing device is as shown in FIG. 3, and specifically includes the following processing steps:
  • Step 31 Assign a corresponding private network IP address to each user terminal device, and assign only one public network IP address to the fixed station; or assign a port number to each user (when no private network IP address is assigned)
  • Step 32 The process of processing the uplink voice service and the process of the downlink voice service are included in the specific voice access process, which will be separately described below;
  • step 33 is performed; otherwise, the voice service is in the downlink direction, and step 34 is performed;
  • Step 33 In the uplink direction, when the user terminal sends the voice service to the network side, the corresponding processing procedure is: the fixed station performs address translation on the voice service to be sent of each user terminal, and then multiplexes it in one MAC (media access) Controlling) the data packet is sent to the DO system, thereby avoiding the problem of sending multiple VOIP voice packets occupying too many air interface slots;
  • Step 34 In the downlink direction, when the DO system network side sends the voice service to the user terminal, the corresponding processing process includes:
  • Step 341 The NAT-PAT function determines the private network IP address information of the user terminal that receives the voice service according to the destination address information of the voice service sent by the network side and/or the port information that enters the fixed station.
  • a private network such as a local area network
  • there is not enough public IP address so each computer is assigned a private network IP address; the private network IP address is different within the LAN, but when the LAN is out Converting to the same public IP address through the NAT device; but the same IP address on the public network will bring confusion, so that the devices on the network do not know exactly which packets are sent by that computer; the function of the NAT device is to give each computer every The Internet application allocates a unique port number (UDP port number or TCP port number), so that as long as the NAT device records which port number is assigned to the IP address of that computer and ensures that there is no conflict, the port number can be used.
  • UDP port number or TCP port number unique port number
  • Step 342 Send the determined private network IP address of the voice service as the destination address or port number information to the corresponding user terminal.
  • the user terminal realizes the call registration or establishment operation of the VOIP service through the integrated access device IAD; and also implements the access registration processing process of each user terminal through the integrated access device, and cooperates with the DO system network side.
  • the softswitch part implements billing and quality of service processing.
  • the service of the fixed station is also in the network.
  • the priority of the access DO system is adopted on the side to ensure that the end-to-end delay of the VOIP client can meet the delay requirement.
  • the G.723 delay index is 150 ms
  • the G.729 delay index is 250 ms. Wait.
  • the functions of the PDSN (Packet Data Service Node) and the BSS (Base Station System) side device are the same as those of the original DO system network, and functions such as fixed station access, radio resource allocation, and connection management are completed, and only the guarantee is required in the present invention.
  • the QoS level of the user under the fixed station can be.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Telephonic Communication Services (AREA)

Description

一种提供语音接入的装置及方法 技术领域 本发明涉及网络通信技术领域, 尤其涉及一种提供语音接入的装置及 方法。
背景技术
CDMA 20001x EX-DO系统或 CDMA 20001x系统的最高速度能够超过 2Mbps , 吞吐量超过 700kbps, 能够与有线 DSL (数字用户线)服务相媲美; 而且, 上述系统还可以支持对速度要求更加严格的应用, 如影像传输、 大 型文件下载等。 因此, 该系统可以满足希望获得更加快速或者更大容量的 数据处理服务的用户。
现有的 CDMA 20001x EX-DO系统或 CDMA 20001x系统的网络架构如图 1 所示, AT (终端用户)通过 BTS/AP (基站 /无线接入点), 以及 BSC/PCF (基 站控制器 /端口及核心功能部分)接入 PDSN (分组数据服务节点) , 开展 各项业务, 包括 VOIP (基于 IP的语音) 业务等。
根据相关协议规定, 一个 AT只能有一个 IP地址, 即只能支持一个用户 发起语音呼叫。 同时, 由于 CDMA 20001x EX-DO或 CDMA 20001x的空中接口 采用时分方式, 每个时隙 ( 1. 6667ms ) 只能为一个用户服务。 而且, V0IP 业务对时延要求比较严格, 目前业界大多采用 20ms每帧或者 30ms每帧的标 准进行数据的发送, 因此, 要求系统在平均每帧时间内均能为每个用户发 送一帧的数据,否则就会造成较大的时延或抖动。按照 30ms每帧计算, 30ms 内 CDMA 20001x EX-D0系统或 CDMA 2 OOOlx系统的空中前向信道只有 18个时 隙, 按照每个用户每帧的平均发送时间为 2个时隙, 最大只能支持 9个 V0IP 用户; 如果按照 20ms帧计算, 最大只可以支持六个用户, 这样的用户数量 显然无法满足通信的需求。
为增加可以支持的用户的数量,还可以通过在终端增加緩存时间的方 式增加用户容量。 但是, 考虑到语音时延对用户感觉的影响, 通常用户侧 的緩存不应大于 60ms , 60ms緩存情况下对应每 36s lot s (时隙)发送一个 用户端额数据包, 每个包包含两个 30ms语音帧或者三个 20ms语音帧, 理想 情况下最大可以支持用户数为 18个, 在实际应用中大约可以支持 13 - 14个 用户。
由上述现有技术的状况可以看出: 目前, 在 CDMA 20001x EX - DO系统 或 CDMA 20001x系统中, 可以支持的 VOIP用户数量较少。 而且, 由于目 前的 DO系统已经有一定的时延, 如果还采用 60ms緩存, 将会使得语音业 务的端到端时延超过允许的时延指标要求, 因而现有技术商用性较差。 发明内容
鉴于上述现有技术所存在的问题, 本发明的目的是提供一种提供语音 接入的装置及方法。
本发明的目的是通过以下技术方案实现的:
一种提供语音接入的装置, 包括:
固定台: 用于将经过地址转换的语音业务发送到系统, 并将从系统接 收的语音业务发送给网络地址转换模块;
网络地址转换模块: 用于将用户终端设备发送来的语音业务进行地址 转换后发送给固定台, 并将固定台发来的语音业务进行地址转换后发送给 相应的用户终端设备。
所述装置还包括:
综合接入设备: 连接于网络地址转换模块与用户终端设备间, 用于实 现基于互联网协议的语音 VOIP业务的呼叫处理。
所述的综合接入设备和 /或网络地址转换模块可以内置于固定台中, 或者独立于固定台设置, 且所述的网络地址转换模块可以为具有网络地址 转换 -公网地址转换 NAT - PAT功能的路由器或可以进行端口号复用的设 备。
所述的固定台为固定的无线本地终端设备。
所述的固定台、 网络地址转换模块和综合接入设备分别可以为物理设 备或逻辑实体。
本发明还提供了一种基于上述装置的语音接入的方法, 包括:
A、 为各个用户终端设备分别分配相应的私网 IP地址或端口号信息;
B、 各个用户终端设备基于所述的私网 IP地址或端口号信息, 通过网 络地址转换模块接入系统, 开展语音业务。
所述的方法中, 当用户终端向网络侧发送语音业务时, 固定台将各个 用户终端的待发送的语音业务进行地址转换后, 复用在一个数据包中发送 到系统中。
当网络侧向用户终端发送语音业务时, 固定台才艮据网络侧发来的语音 业务的目的地址信息和 /或进入固定台的端口信息确定接收该语音业务的 用户终端的私网 IP地址信息或端口号信息;
将所述的语音业务以确定的私网 IP地址或端口号为目的地址索引发 送给相应的用户终端。
所述方法还包括:
所述的用户终端通过综合接入设备 IAD实现 VOIP业务的呼叫登记或建 立操作。
所述方法还包括:
通过综合接入设备实现各个用户终端的接入注册处理过程, 并配合网 络侧软交换部分实现计费和 /或服务质量的处理。
所述方法适用于 CDMA 20001 X EX-DO系统或 CDMA 20001x系统。 由上述本发明提供的技术方案可以看出, 本发明使得每个扇区同时支 持的正在通话的 VOIP用户数量大大提升, 理论上可以达到原来可以支持的 用户数的 4倍左右, 以吞吐量为 400k, 每个 VOIP用户呼叫包括头压缩并且 在静音打开后带宽大约为 5k为例, 最多可以支持 80个用户。
而且, 本发明中对该类 WLL固定台提供最较高的优先级, 以充分保证 接入和语音时延足够小, 从而满足规定的时延指标要求。
同时, 由于 IAD设备价格低廉, 通过本发明提供的技术方案, 每个终 端用户 (普通电话机)成本 300元左右, 同时还能节省最后一公里的布线 成本(目前固网的最后一公里布线成本每用户大约是 500元) , 本技术方 案完全基于分组域实现, 组网灵活, 不受地域和布线限制。 且既可以支持 语音业务, 还可以支持部分数据业务。
因此, 本发明适用于 IP公话超市、 密集城区补网需求、 最后一公里 接入困难地区和城区接入成本较高的小区、 村庄语音接入语音。 附图说明
图 1为 CDMA 20001x EX-DO系统或 CDMA 20001x系统的组网结构示 意图;
图 2为本发明所述实施例装置的结构示意图;
图 3为本发明所述实施例方法的流程图。
具体实施方式 本发明的可以应用在 CDMA 20001x EX-DO系统或 CDMA 20001 x系 统, 下面以本发明应用在 CDMA 20001 x EX-DO系统(下文简称 DO系统) 为例对本发明的方案进行说明。 在 DO系统的固定台下设置有相应的 NAT - PAT模块, 使得固定台下的用户终端可以利用私网地址接入 DO系统开 展相应的语音业务, 从而提高 DO系统可以支持的 VOIP用户终端的数量, 并可以大幅降低系统中每个终端用户端的成本。 即在 DO系统的固定台下 连接或集成在固定台中一个支持多用户复用 (可以是 NAT-PT复用或通过 端口号复用) 功能的小路由器。
本发明所述的装置的具体实现方式如图 2中虚线框所示, 具体包括: 固定台: 用于将经过地址转换的语音业务发送到 DO系统, 并将从 D〇 系统接收的语音业务发送给网络地址转换模块;
所述的固定台为固定的无线终端设备, 可以支持多路通话, 并可以支 持数据业务接入功能, 以保证可以下接多个可以开展 VOIP业务的用户终 端;
网络地址转换模块: 用于将用户终端发送来的语音业务进行地址转换 后发送给固定台, 并将固定台发来的语音业务进行地址转换后发送给相应 的用户终端设备;
所述的网络地址转换模块可以为具有 NAT - PAT (网络地址转换 -公 网地址转换)功能的路由器, 也可以是进行端口号复用的设备, 如果是通 过端口号复用方式则可以集成在综合接入设备 IAD中, 从而实现用户终端 的私网 IP地址与公网 IP地址间的转换处理, 使得应用较少的公网 IP地址便 可以支持更多的用户终端;
综合接入设备 IAD: 连接于网络地址转换模块与用户终端设备间, 用 于实现基于互联网协议的语音 VOIP业务的呼叫处理操作, 并实现语音编 码格式转换等, 例如, 可以将 VOIP语音转换为用户终端可以识别的音频 编码。
IAD下的用户终端需要被呼叫的场合, 即作为被叫时, IAD设备可以 自动为每个用户提供到现有的 Eudemon (类似网守功能的设备, 同时提供 私网 IP地址和公网的 IP地址之间的信令和语音的交互)的注册。 Eudemon 能将 IAD下的电话用户 (IP超市、 小区接入等、 网吧等)接入运营商 NGN 网络, 为 Internet用户提供会话业务登记、 NAT穿越, 并为会话业务提供 信令代理、 媒体转发支持(即 PSTN与 IP网络互通) 、 配合软交换中心完 成计费处理和 QoS (服务质量) 处理。 软交换中心完成 VOIP呼叫处理, 可以处理支 VOIP呼叫信令(如 SIP、 H.323 MGCP等)和媒体流中继、 媒体流旁路等功能。
而且, 所述的 IAD设备下可以和多个用户终端(即普通电话机)相连, 具体可以连接的数量与用户需求、 DO系统的信道条件, 以及设备支持能 力等因素相关;
若干个用户终端设备: 分别为用于收发语音业务的终端语音设备, 每 个用户终端分配有一个私网 IP地址, 并占用固定台的一个应用端口。
本发明所述的装置中, 所述的综合接入设备和 /或网络地址转换模块 可以内置于固定台中, 或者独立于固定台设置, 也就是说, 可以在固定台 中内置逻辑实现的 NAT - PAT功能和 IAD设备功能。
而且, 所述的固定台、 网络地址转换模块和综合接入设备分别可以为 物理设备, 也可以为逻辑实体。 本发明所述一种基于上述装置的语音接入的方法的具体实施方式如 图 3所示, 具体包括以下处理步骤:
步骤 31 : 为各个用户终端设备分别分配相应的私网 IP地址, 仅为所述 的固定台分配一个公网 IP地址; 或为每个用户分配一个端口号(不分配私 网 IP地址的情况)
这样, 各个仅分配了私网 IP地址或端口号的用户终端便可以基于网络 地址转换模块, 即 NAT - PAT功能在 DO系统中开展 VOIP语音业务。 步骤 32:在具体的语音接入过程中包括上行语音业务的处理过程和下 行语音业务的处理过程, 下面将分别进行说明;
也就是说,在固定台判断语音业务是上行方向,则执行步骤 33,否则, 语音业务为下行方向, 执行步骤 34;
步骤 33: 在上行方向, 当用户终端向网络侧发送语音业务时, 相应的 处理过程为: 固定台将各个用户终端的待发送的语音业务进行地址转换 后, 复用在一个 MAC (媒体接入控制)数据包中发送到 DO系统, 从而避 免了发送多个 VOIP语音包占用空口时隙过多的问题;
步骤 34: 在下行方向, 当 DO系统网络侧向用户终端发送语音业务时, 相应的处理过程包括:
步骤 341: NAT一 PAT功能根据网络侧发来的语音业务的目的地址信 息和 /或进入固定台的端口信息确定接收该语音业务的用户终端的私网 IP 地址信息;
例如, 在一个私有网络中 (比如局域网) , 没有足够的公网 IP地址, 所以就给每台电脑分配一个私网 I P地址; 私网 I P地址在局域网内部是不同 的, 但出局域网的时候就通过 NAT设备转换成完全相同的公网 IP地址; 但 公网 I P地址相同会带来混淆, 使得网络上的设备不知道到底是那个电脑发 出的包; NAT设备的功能就是给每个电脑的每个上网应用分配唯一的一个 端口号(UDP端口号或 TCP端口号), 这样只要 NAT设备记录下来哪些端 口号是分给了那个电脑的 IP地址, 并保证不会冲突, 就可以用端口号来区 分是那个电脑的应用, 同时完成公网地址、 端口号到私网地址、 端口号之 间的转换; 接收包和发送包时均需要进行一次地址转换;
步骤 342: 将所述的语音业务以确定的私网 IP地址为目的地址或端口 号信息发送给相应的用户终端。
本发明中,所述的用户终端通过综合接入设备 IAD实现 VOIP业务的呼 叫登记或建立操作; 并且, 还通过综合接入设备实现各个用户终端的接入 注册处理过程, 并配合 DO系统网络侧软交换部分实现计费及服务质量的 处理。
本发明中, 为满足时延和抖动指标的要求, 还对固定台的业务在网络 侧采用了较高的接入 DO系统的优先级, 以保证 VOIP用户端到端时延能满 足时延指标要求, 例如, G.723时延指标是 150ms , G.729时延指标是 250ms等等。
本发明中 PDSN (分组数据业务节点)和 BSS (基站系统)侧设备功 能与原有的 DO系统网络相同、 完成固定台接入、 无线资源分配、 连接管 理等功能, 本发明中只需要其保证该固定台下的用户的 QoS等级即可。 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书的保护范围为准。

Claims

权 利 要 求
1、 一种提供语音接入的装置, 其特征在于, 包括:
固定台: 用于将经过地址转换的语音业务发送到系统, 并将从系统接 收的语音业务发送给网络地址转换模块;
网络地址转换模块: 用于将用户终端设备发送来的语音业务进行地址 转换后发送给固定台, 并将固定台发来的语音业务进行地址转换后发送给 相应的用户终端设备。
2、 根据权利要求 1所述的提供语音接入的装置, 其特征在于, 该装置 还包括:
综合接入设备: 连接于网络地址转换模块与用户终端设备间, 用于实 现基于互联网协议的语音 VOIP业务的呼叫处理。
3、 根据权利要求 1或 2所述的提供语音接入的装置, 其特征在于, 所 述的综合接入设备和 /或网络地址转换模块内置于因定台中,或者独立于固 定台设置, 且所述的网络地址转换模块为具有网络地址转换 -公网地址转 换 NAT - PAT功能的路由器或可以进行端口号复用的设备。
4、 根据权利要求 1或 2所述的提供语音接入的装置, 其特征在于, 所 述的固定台为固定的无线本地终端设备。
5、 根据权利要求 1或 2所述的提供语音接入的装置, 其特征在于, 所 述的固定台、 网络地址转换模块和综合接入设备分别可以为物理设备或逻 辑实体。
6、一种基于权利要求 1所述装置的语音接入方法,其特征在于, 包括:
A、 为各个用户终端设备分别分配相应的私网 IP地址或端口号信息;
B、 各个用户终端设备基于所述的私网 IP地址或端口号信息, 通过网 络地址转换模块接入系统, 开展语音业务。
7、 根据权利要求 6所述的语音接入的方法, 其特征在于, 当用户终端 向网络侧发送语音业务时, 固定台将各个用户终端的待发送的语音业务进 行地址转换后, 复用在一个数据包中发送到系统中。
8、 根据权利要求 6所述的语音接入的方法, 其特征在于, 当网络侧向 用户终端发送语音业务时, 固定台根据网络侧发来的语音业务的目的地址 信息和 /或进入固定台的端口信息确定接收该语音业务的用户终端的私网 IP地址信息或端口号信息;
将所述的语音业务以确定的私网 IP地址或端口号信息为目的地址索 引发送给相应的用户终端。
9、根据权利要求 6、 7或 8所述的语音接入的方法,其特征在于还包括: 所述的用户终端通过综合接入设备 IAD实现 VOIP业务的呼叫登记或 建立操作。
10、 根据权利要求 6、 7或 8所述的语音接入的方法, 其特征在于, 还 包括:
通过综合接入设备实现各个用户终端的接入注册处理过程, 并配合网 络侧软交换部分实现计费和 /或服务质量的处理。
11、 根据权利要求 6、 7或 8所述的语音接入的方法, 其特征在于, 所述方法适用于 CDMA 20001X EX-DO系统或 CDMA 20001x系统。
PCT/CN2005/002270 2004-12-21 2005-12-21 Dispositif et procede pour fournir un acces voix WO2006066506A1 (fr)

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Citations (3)

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US20040122954A1 (en) * 2002-09-03 2004-06-24 Interdigital Technology Corporation Method and system for user initiated inter-device, inter-system, and inter-internet protocol address handoff
CN1509085A (zh) * 2002-12-15 2004-06-30 华为技术有限公司 下一代网络中实现路由的方法
CN1540952A (zh) * 2003-11-03 2004-10-27 中兴通讯股份有限公司 多媒体系统静态地址转换方法

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
US20040122954A1 (en) * 2002-09-03 2004-06-24 Interdigital Technology Corporation Method and system for user initiated inter-device, inter-system, and inter-internet protocol address handoff
CN1509085A (zh) * 2002-12-15 2004-06-30 华为技术有限公司 下一代网络中实现路由的方法
CN1540952A (zh) * 2003-11-03 2004-10-27 中兴通讯股份有限公司 多媒体系统静态地址转换方法

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