AAL2 transmitter for voice-packed and signaling management-packed interleaving on an ATM connection
    52.
    发明申请
    AAL2 transmitter for voice-packed and signaling management-packed interleaving on an ATM connection 有权
    AAL2发送器,用于ATM连接上的语音封装和信令管理封装交织

    公开(公告)号:US20040202149A1

    公开(公告)日:2004-10-14

    申请号:US09827816

    申请日:2001-04-06

    IPC分类号: H04L012/66

    摘要: The present invention provides an apparatus, system and method for transmitting asynchronous transfer mode (ATM) data cells on an ATM adaptation layer (AAL) configured connection within an ATM system comprising a digital signal processor (DSP) sub-system (160) and a host processor (190). The transmitter interfaces directly with the DSP sub-system (160) (which converts the digitized voice samples into voice signals) and the host processor (190) (which performs AAL2 signaling and layer management functions). The transmitter is configured to interleave AAL2 voice packets from the DSP sub-system (160) and signaling and management packets from the host processor (190) on an ATM connection. Data is fetched by DMA(s) (415). A channel look-up table uses the DSP assigned voice channel as an index into the table to map a voice channel to the ATM connection.

    摘要翻译: 本发明提供了一种用于在ATM系统中的ATM适配层(AAL)配置的连接上发送异步传输模式(ATM)数据信元的装置,系统和方法,该ATM系统包括数字信号处理器(DSP)子系统(160)和 主机处理器(190)。 发射机直接与DSP子系统(160)(其将数字化语音样本转换成语音信号)和主处理器(190)(其执行AAL2信令和层管理功能)直接接口。 发射机被配置为在ATM连接上交织来自DSP子系统(160)的AAL2语音分组和来自主处理器(190)的信令和管理分组。 数据由DMA(415)取出。 信道查找表使用DSP分配的语音信道作为表中的索引,以将语音信道映射到ATM连接。

    Multiple node network architecture
    53.
    发明授权
    Multiple node network architecture 失效
    多节点网络架构

    公开(公告)号:US06804229B2

    公开(公告)日:2004-10-12

    申请号:US09222806

    申请日:1998-12-30

    IPC分类号: H04L1252

    摘要: The present invention guarantees that voice data (and other information types) will switch within a predetermined time period. Systems and methods consistent with the present invention accomplish this guarantee by, among other things, establishing permanent virtual paths between each network element, guaranteeing each voice line a slot in a packet in each frame, employing both octet switching and packet switching, synchronizing the operation of the network elements to a reference clock, and providing several levels of network redundancy.

    摘要翻译: 本发明保证语音数据(和其他信息类型)将在预定时间段内切换。 与本发明一致的系统和方法通过在每个网络元件之间建立永久的虚拟路径来实现这一保证,保证每个语音线路在每个帧中的分组中的时隙,同时采用八位位组切换和分组交换,同步操作 的网络元素到参考时钟,并提供多个级别的网络冗余。

    System and method for a communication network
    54.
    发明申请
    System and method for a communication network 失效
    通信网络的系统和方法

    公开(公告)号:US20040165593A1

    公开(公告)日:2004-08-26

    申请号:US10372771

    申请日:2003-02-26

    发明人: Oliver Klotz

    IPC分类号: H04L012/28

    摘要: The invention provides a network element and method for handling ATM traffic and TDM traffic. The network element handles TDM traffic carried on ATM cells, and ATM traffic, and comprises generating means for generating new ATM cells for transmitting ATM traffic. At least part of received ATM cells is inserted as payload into newly generated ATM cells. The Network element is connected on the one hand with a network (30) using both TDM traffic carried on ATM cells, and ATM cell traffic, and on the other hand via at least one PDH (PDHnullPlesiochronous Digital Hierarchy) transmission line (6) connected with a chain containing at least one second network element (1) using TDM traffic and at least one further network element (20) using ATM traffic. The PDH transmission line (6) carries groups of time slots with TDM traffic and groups of time slots carrying complete ATM cells.

    摘要翻译: 本发明提供一种用于处理ATM业务和TDM业务的网元和方法。 网络单元处理在ATM信元上携带的TDM业务和ATM业务,并且包括用于生成用于发送ATM业务的新ATM信元的生成装置。 接收到的ATM信元的至少一部分作为有效载荷插入到新生成的ATM信元中。 网络元件一方面与使用ATM信元上携带的TDM业务和ATM信元业务的网络(30)连接,另一方面通过至少一个PDH(PDH = Plesiochronous Digital Hierarchy)传输线路(6) )使用TDM业务与包含至少一个第二网络元件(1)的链连接,以及使用ATM业务的至少一个另外的网络元件(20)。 PDH传输线(6)携带具有TDM业务的时隙组和携带完整ATM信元的时隙组。

    Data communications method and apparatus
    57.
    发明授权
    Data communications method and apparatus 有权
    数据通信方法及装置

    公开(公告)号:US06717955B1

    公开(公告)日:2004-04-06

    申请号:US09307583

    申请日:1999-05-07

    申请人: Jan Höller

    发明人: Jan Höller

    IPC分类号: H04J324

    摘要: There are voice signals from at least two voice sources which are multiplexed by an ATM Adaptation Layer 2 multiplexer (AAL2 MUX) into the same ATM connection after having been processed by a packetizing device, such that the AAL2 WX is presented with assembled AAL2 packets of a suitable periodicity. If the voice data signals are to be compressed, the packetizing device includes an encoder of a suitable voice codec, e.g. ADPCM, GSM, LD-CELP or CS-ACELP. The voice encoders may also include devices for silence removal. The packetizing device further includes a packetizer, either separated from the voice encoder, or as a part thereof. The packet releases from the packetizing device are synchronized to occur virtually simultaneously. In this way, the released packets from the packetizing device arrive almost simultaneously at the AAL2 MUX, with the result that an ATM cell may be filled with AAL2 packets well before the expiration of the timer of the AAL2 MUX.

    摘要翻译: 存在来自至少两个语音源的语音信号,其被ATM适配层2多路复用器(AAL2 MUX)复用到由打包装置处理之后的相同ATM连接中,使得AAL2 WX被呈现为组合的AAL2分组 适合周期。 如果语音数据信号要被压缩,则分组设备包括合适的语音编解码器的编码器,例如, ADPCM,GSM,LD-CELP或CS-ACELP。 语音编码器还可以包括用于静音去除的设备。 打包装置还包括与语音编码器分离的或作为其一部分的打包器。 来自分组化设备的分组释放被同步以实际上同时发生。 以这种方式,来自分组化设备的释放的分组几乎同时到达AAL2 MUX,结果是可以在AAL2 MUX的定时器期满之前,将ATM信元充满AAL2分组。

    Knowledge-based connection admission method and apparatus for providing efficient multiplexing of data and speech over AAL2
    58.
    发明授权
    Knowledge-based connection admission method and apparatus for providing efficient multiplexing of data and speech over AAL2 失效
    基于知识的连接准入方法和装置,用于通过AAL2提供有效的数据和语音复用

    公开(公告)号:US06717948B1

    公开(公告)日:2004-04-06

    申请号:US09126835

    申请日:1998-07-30

    IPC分类号: H04L1256

    摘要: A knowledge-based connection admission method is disclosed for efficient multiplexing of data and speech over AAL2. The method uses a knowledge-based technique to decide when and what type of data traffic will be multiplexed with speech traffic in ATM Adaptation Layer 2 (AAL2) environment. The knowledge-based connection technique supports low bit rate and delay sensitive applications such as mobile telephony in an ATM environment by maximizing the use of available bandwidth. The method includes monitoring ATM cells for a AAL2 connection, determining whether the ATM cells contain unused bytes and multiplexing data traffic with speech traffic on the AAL2 connection when the data meets a predetermined set of requirements. The method determines whether the data traffic requires a bandwidth that exceeds a bandwidth provided by the unused bytes and multiplexes the data traffic with the speech traffic when the bandwidth required by the data traffic does not exceeds the bandwidth provided by the unused bytes and prevents the multiplexing of the data traffic with the speech traffic when the bandwidth required by the data traffic exceeds the bandwidth provided by the unused bytes. The unused bytes represent silence periods during speech traffic. System observations are gathered and processed with prior knowledge about the system. Based upon the processing, whether the data traffic is suitable for multiplexing with speech traffic is determined and the data is multiplexed with the speech traffic when the data traffic is determined to be suitable for multiplexing with speech traffic in the unused bytes of the speech ATM cells.

    摘要翻译: 公开了一种基于知识的连接准入方法,用于通过AAL2有效地复用数据和语音。 该方法使用基于知识的技术来决定在ATM适配层2(AAL2)环境中什么时候和什么类型的数据业务将与语音业务复用。 基于知识的连接技术通过最大限度地利用可用带宽来支持低比特率和延迟敏感的应用,例如ATM环境中的移动电话。 该方法包括监视AAL2连接的ATM信元,当数据满足预定的一组要求时,确定ATM信元是否包含未使用的字节以及在AAL2连接上复用具有语音业务的数据业务。 该方法确定数据业务是否需要超过由未使用字节提供的带宽的带宽,并且当数据业务所需的带宽不超过未使用字节提供的带宽时,将数据业务与语音业务复用,并防止多路复用 当数据流量所需的带宽超过未使用字节提供的带宽时,具有语音流量的数据流量。 未使用的字节表示语音流量期间的静音时段。 系统观察被收集和处理,具有关于系统的先前知识。 基于该处理,当确定数据业务被确定为适合于在语音ATM信元的未使用字节中与语音业务复用时,确定数据业务是否适合于语音业务的复用,并且数据与语音业务多路复用 。

    System and method for implementing combined packetized TDM streams and TDM cross connect functions
    59.
    发明申请
    System and method for implementing combined packetized TDM streams and TDM cross connect functions 有权
    实现组合分组化TDM流和TDM交叉连接功能的系统和方法

    公开(公告)号:US20040028051A1

    公开(公告)日:2004-02-12

    申请号:US10453878

    申请日:2003-06-02

    摘要: Apparatus implements combined packetized time-division multiplexed (TDM) streams and TDM cross connect functions. The apparatus includes an input buffer, a reassembly state machine, a frame buffer, and a segmentation state machine. The frame buffer includes multiple bins for storing cell data. The segmentation state machine retrieves information from the bins as associated with each DS0 and assembles output cells for transmitting output DS0s. The cells may be in asynchronous transfer mode (ATM) format, allowing a single ATM backplane to be used for voice signals, data signals, and combined voice/data signals. Various types of ATM cell formats are supported.

    摘要翻译: 装置实现组合分组化时分多路复用(TDM)流和TDM交叉连接功能。 该装置包括输入缓冲器,重组状态机,帧缓冲器和分段状态机。 帧缓冲器包括用于存储单元数据的多个存储单元。 分段状态机从与每个DS0相关联的箱中检索信息,并组装用于发送输出DS0的输出单元。 单元可以是异步传输模式(ATM)格式,允许单个ATM背板用于语音信号,数据信号和组合的语音/数据信号。 支持各种类型的ATM信元格式。

    Carrying voice traffic over broad band networks
    60.
    发明授权
    Carrying voice traffic over broad band networks 有权
    在宽带网络上携带语音流量

    公开(公告)号:US06683877B1

    公开(公告)日:2004-01-27

    申请号:US09469141

    申请日:1999-12-21

    IPC分类号: H04L1228

    摘要: Voice traffic is transported between first and second media gateways over a virtual channel connection incorporated in a virtual trunk group in a packet or cell based network The virtual channel connection (VCC) is agreed between the gateways via a mutual exchange of session descriptors. Typically, the VCC is selected or created by a terminating gateway, and this information is relayed in a returned session descriptor to an originating gateway so that the connection can then be established. The session descriptor may also be used to carry information whereby the gateways can negotiate an adaptation layer and/or a connection fabric to be used.

    摘要翻译: 语音流量在包含在分组或基于小区的网络中的虚拟中继群中的虚拟信道连接上在第一和第二媒体网关之间传送。虚拟信道连接(VCC)通过会话描述符的相互交换在网关之间一致。 通常,VCC由终止网关选择或创建,并且该信息在返回的会话描述符中中继到始发网关,从而可以建立连接。 会话描述符还可以用于携带信息,由此网关可以协商要使用的适配层和/或连接结构。