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    • 2. 发明申请
    • SYSTEM AND METHOD FOR EVALUATING STREAMING MULTIMEDIA QUALITY
    • 用于评估流域多媒体质量的系统和方法
    • US20090234940A1
    • 2009-09-17
    • US12048029
    • 2008-03-13
    • Sourav PalSumantra KunduKalyan BasuSajal Das
    • Sourav PalSumantra KunduKalyan BasuSajal Das
    • G06F15/173
    • H04L65/80
    • A system and computer program for evaluating in real-time streaming multimedia quality. The system including a multimedia server connected to a multimedia source and a remote client in communication with the multimedia server over a network. The multimedia server is configured to receive multimedia content from the multimedia source and to transmit the multimedia content as a multimedia stream. The multimedia stream includes a plurality of audio frames and a plurality of video frames. The remote client is configured to establish a multimedia session with the multimedia server, receive the multimedia stream via the multimedia session, monitor the media quality of the multimedia stream, and passively compute a subjective quality of the multimedia stream
    • 一种用于实时流式传输多媒体质量评估的系统和计算机程序。 该系统包括连接到多媒体源的多媒体服务器和通过网络与多媒体服务器通信的远程客户机。 多媒体服务器被配置为从多媒体源接收多媒体内容并以多媒体流的形式发送多媒体内容。 多媒体流包括多个音频帧和多个视频帧。 远程客户端被配置为与多媒体服务器建立多媒体会话,经由多媒体会话接收多媒体流,监视多媒体流的媒体质量,以及被动地计算多媒体流的主观质量
    • 5. 发明授权
    • Method and system for limiting data packet transmission within a digital mobile telephone communication network by discarding unsuccessfully transmitted radio link protocol frames
    • 通过丢弃成功发送的无线链路协议帧来限制数字移动电话通信网络内的数据分组传输的方法和系统
    • US06556556B1
    • 2003-04-29
    • US09239285
    • 1999-01-29
    • Sanjoy Kumar SenArun ArunachalamKalyan Basu
    • Sanjoy Kumar SenArun ArunachalamKalyan Basu
    • H04Q734
    • H04L1/1877H04L1/1809
    • An improved method and system for limiting data packet transmission within a digital mobile telephone communication network, such as a code division multiple access (CDMA) mobile telephone communication network, by discarding unsuccessfully transmitted radio link protocol frames is disclosed. A code division multiple access (CDMA) mobile telephone communication network includes a mobile telephone, a base station, a mobile switching center, and a network Interworking Function. Within the CDMA mobile telephone communication network, each point-to-point protocol data packet is typically divided into multiple radio link protocol frames before their transmissions over an air link. In accordance with a method and system of the present invention, a marker bit is provided for each of the radio link protocol frames. The marker bit can be part of the frame header and will be removed before air link transmission. The marker bit of a first one of the radio link protocol frames is set to a first logical state (such as a logical “1”) and the rest of the radio link protocol frames are set to a second logical state (such as a logical “0”). In response to an unsuccessful transmission of one of the radio link protocol frames, all of the radio link protocol frames within the same point-to-point protocol data packet having the marker bit set to the second logical state are discarded, after a predetermined number of unsuccessful re-transmission attempts.
    • 公开了通过丢弃未成功发送的无线链路协议帧来限制诸如码分多址(CDMA)移动电话通信网络的数字移动电话通信网络内的数据分组传输的改进方法和系统。 码分多址(CDMA)移动电话通信网络包括移动电话,基站,移动交换中心和网络互通功能。 在CDMA移动电话通信网络内,每个点对点协议数据分组通常在空中链路传输之前分成多个无线电链路协议帧。 根据本发明的方法和系统,为每个无线链路协议帧提供标记位。 标记位可以是帧头的一部分,并且将在空中链路传输之前被去除。 无线电链路协议帧中的第一个的标记位被设置为第一逻辑状态(诸如逻辑“1”),并且其余无线电链路协议帧被设置为第二逻辑状态(例如逻辑 “0”)。 响应于无线链路协议帧之一的不成功的传输,在具有设置为第二逻辑状态的标记位的相同点对点协议数据分组内的所有无线链路协议帧被丢弃,在预定数目 不成功的重传尝试。
    • 6. 发明授权
    • GPRS MAC procedures to support real-time services
    • GPRS MAC程序支持实时服务
    • US06466544B1
    • 2002-10-15
    • US09469668
    • 1999-12-22
    • Sanjoy SenTanuj BagchiJoseph HoKalyan BasuIndranil Bob TapadarChiew-Leong Saw
    • Sanjoy SenTanuj BagchiJoseph HoKalyan BasuIndranil Bob TapadarChiew-Leong Saw
    • H04B7212
    • H04W72/0453H04W76/10H04W76/30
    • A system and method for GPRS MAC procedures to support delay-sensitive, real-time traffic is presented. The system comprises a mobile station able to transmit packets to and receive packets from a base station, where the base station is coupled to a General Packet Radio Service (GPRS) network, and where the GPRS network is coupled to a data network. In an uplink dynamic scheme, the base station receives an empty packet from the mobile station. The base station releases a bandwidth allocated to the mobile station if an implementation dependent time expires and further allocates a reduced portion of the bandwidth to the mobile station if a number of the empty packets are received or if a control packet requesting additional bandwidth is received by the base station. In an uplink fixed scheme, the base station allocates a fixed number of radio resources to the mobile station. The base station releases the radio resources allocated to the mobile station, if the fixed number of radio resources are not utilized and further allocates a reduced bandwidth to the mobile station if a number of empty packets are received.
    • 提出了一种支持延迟敏感的实时流量的GPRS MAC过程的系统和方法。 该系统包括能够向基站发送分组并从基站接收分组的移动站,其中基站耦合到通用分组无线业务(GPRS)网络,并且其中GPRS网络耦合到数据网络。 在上行链路动态方案中,基站从移动台接收空分组。 如果实现相关时间到期,则基站释放分配给移动台的带宽,并且如果接收到多个空分组,或者如果通过以下方式接收到请求附加带宽的控制分组,则向 基站。 在上行链路固定方案中,基站向移动台分配固定数量的无线资源。 如果没有使用固定数量的无线电资源,则基站释放分配给移动台的无线电资源,并且如果接收到多个空分组,则进一步向移动台分配减少的带宽。