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    • 2. 发明申请
    • Method and apparatus for transmitting and receiving VOIP packet with UDP checksum in wireless communication system
    • 用于在无线通信系统中发送和接收具有UDP校验和的VOIP分组的方法和装置
    • US20080212566A1
    • 2008-09-04
    • US11525219
    • 2006-09-22
    • Seong-Hun KimGert Jan Van LieshoutHimke Van Der Velde
    • Seong-Hun KimGert Jan Van LieshoutHimke Van Der Velde
    • H04L12/66
    • H04W28/06H04L65/607H04L69/04H04L69/22
    • A method and apparatus for transmitting a voice packet through a radio link in a mobile communication system providing a voice service through a packet network inter-working with the Internet are provided, in which a voice packet based on an Internet protocol (e.g. a VoIP packet) is received, the voice packet comprising headers including a User Datagram Protocol (UDP) checksum; the voice packet is verified by using the UDP checksum, to determine if the voice packet has an error; the headers are compressed to construct a header-compressed packet including the UDP checksum and a Cyclic Redundancy Check (CRC) code calculated for other header fields, except for the UDP checksum from among the headers, when the voice packet has no error, the UDP checksum from the header-compressed packet is deleted to construct a header-compressed packet from which the UDP checksum has been deleted, and the header-compressed packet is transmitted without the UDP checksum through a wireless channel.
    • 提供了一种用于通过与因特网互通的分组网络提供语音服务的移动通信系统中的无线电链路发送语音分组的方法和装置,其中基于因特网协议的语音分组(例如,VoIP分组 ),所述语音分组包括包括用户数据报协议(UDP)校验和的报头; 通过使用UDP校验和来验证语音分组,以确定语音分组是否具有错误; 头部被压缩以构成头部压缩包,包括UDP校验和和为其他标题字段计算的循环冗余校验(CRC)码,除了报头中的UDP校验和之外,当语音数据包没有错误时,UDP 删除来自标头压缩包的校验和,以构建已从其中删除UDP校验和的报头压缩包,并通过无线信道在没有UDP校验和的情况下发送报头压缩包。
    • 6. 发明授权
    • Method and apparatus for supporting voice service through radio channel in mobile telecommunication system
    • 用于通过移动电信系统中的无线电信道支持语音服务的方法和装置
    • US07898980B2
    • 2011-03-01
    • US11239641
    • 2005-09-30
    • Seong-Hun KimGert Jan Van Lieshout
    • Seong-Hun KimGert Jan Van Lieshout
    • H04L12/28
    • H04W28/18H04W28/06H04W28/20H04W76/12
    • A method and an apparatus for supporting a voice service through a radio channel in a mobile telecommunication system are provided, wherein the method includes the steps of determining a voice codec mode, byte-alignment information about a byte-alignment scheme of a voice packet, a requested bandwidth and a codec type used for processing a voice call in a procedure of establishing a call between a terminal and a core network, forming a packet data protocol context establishing message including the codec type, the byte-alignment information and the voice codec mode in order to establish a bearer for a packet call, and transmitting the formed packet data protocol context establishing message to the core network from the terminal. The method further includes the steps of transmitting a radio bearer establishing message from an access network to the terminal, the radio bearer establishing message including a radio link packet size set determined based on the codec type, the byte-alignment information and the voice codec mode, the access network connecting the terminal with the core network.
    • 提供了一种通过移动电信系统中的无线电信道来支持语音服务的方法和装置,其中该方法包括以下步骤:确定语音编解码方式,关于语音分组的字节对准方案的字节对齐信息, 用于在终端和核心网之间建立呼叫的过程中处理语音呼叫的请求带宽和编解码器类型,形成包括编解码器类型,字节对齐信息和语音编解码器的分组数据协议上下文建立消息 模式,以便建立用于分组呼叫的承载,并且从终端将形成的分组数据协议上下文建立消息发送到核心网络。 该方法还包括以下步骤:从接入网向终端发送无线电承载建立消息,所述无线承载建立消息包括基于编解码器类型确定的无线链路分组大小集,字节对准信息和语音编解码模式 连接终端与核心网的接入网络。