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    • 82. 发明专利
    • Packet transmission apparatus, packet reception apparatus, packet transmission method and packet reception method
    • 分组传输装置,分组接收装置,分组传输方法和分组接收方法
    • JP2005051299A
    • 2005-02-24
    • JP2003202981
    • 2003-07-29
    • Toshiba Corp株式会社東芝
    • NAGAI TAKESHINODA REIKOKIKUCHI YOSHIHARUUENO HIDEYUKI
    • H04L1/08H04L12/70H04L12/841H04L12/853H04L29/06H04L29/08H04L12/56
    • PROBLEM TO BE SOLVED: To provide packet transmission apparatus for efficiently transmitting multimedia contents through a network wherein it is possible to intrude errors to packets, and to provide packet reception apparatus, a packet transmission method, a packet reception method and a program. SOLUTION: When a retransmission request reception section 107 receives a retransmission request from a receiver, a retransmission control section 108 determines the importance of the request in the light of whether or not data of the retransmitted packet are in time for the utilization of the data by the receiver when the packet is retransmitted, the importance being related to retransmission of the packet with respect to the request. The request is stored in a retransmission request queue section 110 together with the importance. The retransmission control section 109 selects the packet to be retransmitted on the basis of the importance when a plurality of packets to be retransmitted exist. A retransmission packetizing section 111 assembles the selected packet into the retransmission packet, which is transmitted to the receiver from a retransmission packet transmission section 113 via a retransmission packet queue section 112. COPYRIGHT: (C)2005,JPO&NCIPI
    • 解决的问题:提供一种能够通过网络有效地发送多媒体内容的分组发送装置,其中可以将错误引入分组,并且提供分组接收装置,分组发送方法,分组接收方法和程序 。 解决方案:当重发请求接收部分107从接收机接收到重传请求时,重传控制部分108根据重新发送的数据包的数据是否及时地使用,确定请求的重要性 当分组被重传时接收机的数据,重要性与关于请求的分组的重传有关。 该请求与重要性一起存储在重传请求队列部分110中。 重传控制部件109当存在多个重传分组时,基于重要性来选择要重发的分组。 重发分组化部111将选择的分组组合到重发分组中,该重传分组经由重传分组队列部112从重传分组发送部113发送给接收者。(C)2005年,JPO&NCIPI
    • 83. 发明专利
    • Communication control method and communication controller
    • 通信控制方法和通信控制器
    • JP2005039724A
    • 2005-02-10
    • JP2003276903
    • 2003-07-18
    • Motorola Incモトローラ・インコーポレイテッドMotorola Incorporated
    • NAKAI NORIYUKI
    • H04L12/70H04L12/841H04L12/853H04L29/06H04L29/08H04M3/00H04L12/56
    • PROBLEM TO BE SOLVED: To provide a communication control method and a communication controller capable of maintaining appropriate communication between terminals under communication, suitable for a line state irrespective of variance of bandwidth allocated to the terminals. SOLUTION: A terminal A is equipped with one or a plurality of voice coding systems and performs communication with a voice coding system converter T with SIP control function via a speech codec A. Similarly, a terminal B is also equipped with one or a plurality of voice coding systems and performs communication with the voice coding system converter T with SIP control function via a speech codec B. The voice coding system converter T with SIP control function is equipped with a function for preventing termination of communication by shortage of bandwidth by dynamically switching, mutually converting and relaying the voice coding systems of the terminals A, B in the case of SIP control VoIP communication between the terminals A, B in which the bandwidth to be allocated in the communication changes. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种通信控制方法和通信控制器,其能够在通信中的终端之间保持适合于线路状态的适当通信,而不管分配给终端的带宽的变化。 解决方案:终端A配备有一个或多个语音编码系统,并且经由语音编解码器A与具有SIP控制功能的语音编码系统转换器T进行通信。类似地,终端B还配备有一个或 多个语音编码系统,并通过语音编解码器B与具有SIP控制功能的语音编码系统转换器T进行通信。具有SIP控制功能的语音编码系统转换器T具有防止通过不足带宽终止通信的功能 在终端A,B之间的SIP控制VoIP通信的情况下,动态切换,相互转换和中继终端A,B的语音编码系统,其中在通信中要分配的带宽改变。 版权所有(C)2005,JPO&NCIPI
    • 86. 发明专利
    • Radio base station, mobile terminal, radio communication system and radio communicating method
    • 无线电台站,移动终端,无线电通信系统和无线电通信方法
    • JP2004248105A
    • 2004-09-02
    • JP2003037374
    • 2003-02-14
    • Ntt Docomo Inc株式会社エヌ・ティ・ティ・ドコモ
    • KITAZAWA DAISUKECHIN ARASHIKAYAMA HIDETOSHIUMEDA SEISHI
    • H04B7/26H04L12/801H04L12/841H04L12/861H04L12/911H04L29/14H04W28/14H04Q7/38H04L12/56
    • PROBLEM TO BE SOLVED: To provide an efficient radio base station that prevents a processing delay due to the attachment of a time stamp. SOLUTION: This radio base station is provided with a plurality of transmission buffers 16 for storing the packets to be transmitted, an arrival interval measuring part 11 for measuring a packet arrival interval, a determining part 12 for determining largeness/smallness between the packet arrival interval measured by the arrival interval measuring part 11 and a prescribed threshold, a storing part 17 for storing the time when a subsequent packet arrives as the data arrival time about a transmission buffer for storing the packet when the determining part 12 determines that the arrival interval is larger than the prescribed threshold, and a scheduling processing part 14 for performing preferential control of packet transmission on the basis of the data arrival time about the respective transmission buffers 16 stored in the storing part 17. COPYRIGHT: (C)2004,JPO&NCIPI
    • 要解决的问题:提供一种有效的无线电基站,其防止由于附加时间戳而导致的处理延迟。 解决方案:该无线基站设置有多个用于存储要发送的分组的发送缓冲器16,用于测量分组到达间隔的到达间隔测量部分11,用于确定分组到达间隔的大小/小的确定部分12 由到达间隔测量部分11测量的分组到达间隔和规定的阈值;存储部分17,用于当确定部分12确定该分组到达间隔时,存储当后续分组到达时的时间作为关于用于存储分组的传输缓冲器的数据到达时间 到达间隔大于规定的阈值,以及调度处理部14,用于根据存储在存储部17中的各个发送缓冲器16的数据到达时间进行分组发送的优先控制。 )2004年,日本特许厅和NCIPI
    • 87. 发明专利
    • Packet transmitter-receiver in frame relay network
    • 框架继电器网络中的分组发射机 - 接收器
    • JP2004208119A
    • 2004-07-22
    • JP2002376074
    • 2002-12-26
    • Nec Engineering Ltd日本電気エンジニアリング株式会社
    • NODA SUSUMU
    • H04L12/885H04L12/829H04L12/841H04L12/851H04L12/951H04L12/56
    • PROBLEM TO BE SOLVED: To mainly prevent a deterioration in communication efficiency which occurs by fragmenting transmission of non-real time packet data only with information on a transmitting side. SOLUTION: In the present invention, by providing a DLCI unit showing a transmission destination of a frame relay network with an adjacency information table for storing a line speed (band information) of the opposite device, a fragment size of a non-real time packet is determined for a destination DLCI unit, a packet size that can be transmitted between transmission intervals is determined, and the non-real time packet is divided into this size (fragment size) to be transmitted. This prevents delay of a real time packet arrival interval and an occurrence of congestion at a receiving side and improves the communication efficiency of the non-real time packet. COPYRIGHT: (C)2004,JPO&NCIPI
    • 要解决的问题:为了防止仅通过发送侧的信息将非实时分组数据的发送分段而发生的通信效率的恶化。 解决方案:在本发明中,通过提供表示帧中继网络的发送目的地的DLCI单元,其具有用于存储相对设备的线路速度(频带信息)的相邻信息表, 确定目的地DLCI单元的实时分组,确定可以在传输间隔之间传输的分组大小,并将非实时分组划分成要发送的大小(分段大小)。 这防止实时分组到达间隔的延迟和接收侧的拥塞的发生,并且提高非实时分组的通信效率。 版权所有(C)2004,JPO&NCIPI
    • 90. 发明专利
    • Data distribution system, and data distribution method
    • 数据分配系统和数据分配方法
    • JP2003348142A
    • 2003-12-05
    • JP2002148065
    • 2002-05-22
    • Ntt Docomo Inc株式会社エヌ・ティ・ティ・ドコモ
    • SHIBUYA AKIRA
    • G06F13/00H04L12/70H04L12/801H04L12/825H04L12/835H04L12/841H04L12/911H04L12/56
    • PROBLEM TO BE SOLVED: To provide a data distribution system for relaxing congestion of traffic. SOLUTION: In the data distribution system 1 related to this invention wherein a distribution server 10 provided on a wired network distributes data to a mobile terminal 30 on a radio network, a temporary file 25 is provided in a base station 20 placed between the distribution server 10 and the mobile terminal 30, the distribution server 10 monitors the traffic of the wired network from the distribution server 10 to the base station 20, when the traffic of the wired network is smaller than prescribed, the distribution server 10 transmits data to the base station 20, which stores the data to the temporary file 25. Succeedingly, the base station 20 monitors the traffic of the radio network, and when the traffic of the radio network is smaller than a prescribed traffic amount, the base station 20 reads the data distributed from the temporary file 25 and transmits the data to the mobile terminal 30. COPYRIGHT: (C)2004,JPO
    • 要解决的问题:提供一种用于放松交通拥堵的数据分发系统。 解决方案:在与本发明相关的数据分发系统1中,其中设置在有线网络上的分发服务器10将数据分配给无线电网络上的移动终端30,临时文件25设置在放置在 分发服务器10和移动终端30,分发服务器10在有线网络的流量小于规定的情况下,监视有线网络从分发服务器10到基站20的流量,分发服务器10发送数据 向基站20存储数据到基站20.另外,基站20监视无线网络的业务,当无线网络的业务小于规定的业务量时,基站20 读取从临时文件25分发的数据,并将数据发送到移动终端30.版权所有(C)2004,JPO