公开(公告)号：EP1596514A2

公开(公告)日：2005-11-16

申请号：EP05106705.6

申请日：1999-04-20

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Otaka, Akihiro, c/o NTT Int. Prop. Center ,  Miki, Noriki, NTT Int. Prop. Center ,  Tamaki, Norio, c/o NTT Int. Prop. Center

IPC: H04J3/24 ,  H04L12/64

CPC classification number: H04J3/247 ,  H04J3/24 ,  H04L12/2801 ,  H04L47/13 ,  H04L47/50 ,  H04L47/522 ,  H04L47/6225 ,  H04L47/6235 ,  H04L47/624 ,  H04L49/9031

Abstract: A packet multiplexing apparatus is presented for multiplexing packets to be transmitted from a number of user facilities to a local service node in such a way to assure equal access to one output port for all the users. The apparatus is provided with input ports (1-0~1-(N-1)) for inputting a packet in a respective input port; buffer memories (3-0~3-(n-1)) provided for each input port for temporary storage of a packet; an output signal transmission circuit (4) for retrieving a packet from each buffer memory in a specific sequence; an output port (2) for transmitting packets output from the output signal transmission circuit; and a retrieval sequencing section (10 or 20 or 30) for controlling the specific sequence by changing a retrieving order of packets from buffer memories for each complete round of packet retrieval so that a frequency of the retrieving order for each input port is uniformly shared by the input ports.

公开(公告)号：EP1596514B1

公开(公告)日：2010-02-24

申请号：EP05106705.6

申请日：1999-04-20

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Otaka, Akihiro, c/o NTT Int. Prop. Center ,  Miki, Noriki, NTT Int. Prop. Center ,  Tamaki, Norio, c/o NTT Int. Prop. Center

IPC: H04J3/24 ,  H04L12/64

CPC classification number: H04J3/247 ,  H04J3/24 ,  H04L12/2801 ,  H04L47/13 ,  H04L47/50 ,  H04L47/522 ,  H04L47/6225 ,  H04L47/6235 ,  H04L47/624 ,  H04L49/9031

公开(公告)号：EP1596514A3

公开(公告)日：2007-08-15

申请号：EP05106705.6

申请日：1999-04-20

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Otaka, Akihiro, c/o NTT Int. Prop. Center ,  Miki, Noriki, NTT Int. Prop. Center ,  Tamaki, Norio, c/o NTT Int. Prop. Center

IPC: H04J3/24 ,  H04L12/64

CPC classification number: H04J3/247 ,  H04J3/24 ,  H04L12/2801 ,  H04L47/13 ,  H04L47/50 ,  H04L47/522 ,  H04L47/6225 ,  H04L47/6235 ,  H04L47/624 ,  H04L49/9031

Abstract: A packet multiplexing apparatus is presented for multiplexing packets to be transmitted from a number of user facilities to a local service node in such a way to assure equal access to one output port for all the users. The apparatus is provided with input ports (1-0~1-(N-1)) for inputting a packet in a respective input port; buffer memories (3-0~3-(n-1)) provided for each input port for temporary storage of a packet; an output signal transmission circuit (4) for retrieving a packet from each buffer memory in a specific sequence; an output port (2) for transmitting packets output from the output signal transmission circuit; and a retrieval sequencing section (10 or 20 or 30) for controlling the specific sequence by changing a retrieving order of packets from buffer memories for each complete round of packet retrieval so that a frequency of the retrieving order for each input port is uniformly shared by the input ports.

Abstract translation: 提出了一种分组多路复用装置，用于多路复用要从多个用户设施发送到本地服务节点的分组，以确保对于所有用户均等访问一个输出端口。 该设备具有用于在相应输入端口中输入分组的输入端口（1-0〜1-（N-1））; 为每个输入端口提供的用于临时存储分组的缓冲存储器（3-0〜3-（n-1））; 输出信号传输电路（4），用于以特定顺序从每个缓冲存储器中检索分组; 输出端口（2），用于传输从输出信号传输电路输出的分组; 和一个检索序列部分（10或20或30），用于通过改变来自缓冲存储器的包的检索次序来控制特定序列，用于每轮完整的包检索，使得每个输入端口的检索次序的频率被 输入端口。

公开(公告)号：EP1341330A2

公开(公告)日：2003-09-03

申请号：EP03100476.5

申请日：2003-02-27

Applicant: Nippon Telegraph and Telephone Corporation

Inventor： Ota, Noriyuki, NTT Int. Prop. Center ,  Miki, Noriki, NTT Int. Prop. Center

IPC: H04J3/16

CPC classification number: H04L12/2861 ,  H04J3/0682 ,  H04J3/1694 ,  H04L12/4604 ,  H04L47/15 ,  H04L47/283 ,  H04L47/70 ,  H04L47/781 ,  H04L47/822 ,  H04L47/826 ,  H04L47/828 ,  H04L2012/561 ,  H04L2012/5632 ,  H04L2012/5679 ,  H04Q11/0478

Abstract: A bandwidth allocation method used in a point-to-multipoint communication system, for efficiently using the bandwidth while shortening delay time. A central unit (1) quantizes round-trip propagation delay times of subsidiary units (6, 7, 8), groups the subsidiary units, assigns the same quantized round-trip delay time to the same group, and allocates allocation request signal bandwidths to the subsidiary units of the same group when receiving allocation requests within a predetermined period. Based on the quantized round-trip delay time, the bandwidths are located as close as possible while the bandwidths do not temporally overlap with each other and as temporally ahead as possible. Data signal bandwidths are also allocated to the subsidiary units of the same group, based on the quantized round-trip delay time and requested amounts of data, in a manner such that the bandwidths are located as temporally ahead as possible but temporally behind in comparison with the allocation request signal bandwidths.