COMMUNICATION NETWORK, INFORMATION PROCESSOR AND ADDRESS ASSIGNING METHOD

• US 20100085969A1
• Filed: 11/16/2007
• Published: 04/08/2010
• Est. Priority Date: 11/22/2006
• Status: Active Grant

• Current Assignee: NEC Platforms, Ltd. (NEC Corporation)
• Original Assignee: NEC Corporation, NEC Engineering Limited
• Inventors: Suzuki, Kunihiro, Fukami, Koji, Sukenari, Teruki, Mitsuhashi, Akitake, Taguchi, Daigo, Yoshida, Nobuhide, Kimura, Tohru, Aoki, Yuuichi, Yano, Hitoshi, Noda, Jun
• Granted Patent: US 8,509,238 B2
• Time in Patent Office: Days
• US Class Current: 370/392
• CPC Class Codes: H04L 12/40006 Architecture of a communication node current supply arrangements H04L12/10; intermediate storage or scheduling H04L49/90
• CPC Class Codes: H04L 12/44 Star or tree networks

Abstract

A communication network of the present invention includes: a plurality of superordinate nodes 110 to 1m0 forming a cascade type topology; and a plurality of terminal nodes 111 to 11n, connected to at least one superordinate node from among said plurality of superordinate nodes and forming a star type topology with the superordinate node connected.

Claims

1-12. -12. (canceled)

13. A communication network comprising:

a plurality of superordinate nodes, each of said plurality of superordinate nodes assigned with an address, forming a cascade type topology; and

,

a plurality of terminal nodes, each of said plurality of terminal nodes assigned with an address, connected to at least one superordinate node from among said plurality of superordinate nodes, said plurality of terminal nodes forming a star type topology with said superordinate node connected.

14. The communication network according to claim 13, wherein

a plurality of said cascade type topologies are provided, and

a basestation is provided on the most upstream side, with respect to a predetermined communication direction, in communication paths which said plurality of cascade type topologies have.

20. The communication network according to claim 13, wherein, at least one of communication paths for connecting between said superordinate nodes and communication paths for connecting between said superordinate node and said terminal nodes, is established by wireless communication.

15. A communication network comprising:

a plurality of superordinate nodes forming a cascade type topology; and

,

a plurality of terminal nodes, connected to at least one superordinate node from among said plurality of superordinate nodes, said plurality of terminal nodes forming a star type topology with said superordinate node connected, wherein

an address of said superordinate node includes at least a hop number that indicates a depth level of said superordinate node from the most upstream superordinate node to a downstream superordinate node with respect to a predetermined communication direction in communication paths which said cascade type topology has, and

an address of said terminal node includes said hop number and a node sub-number based on which said superordinate node discriminates between said plurality of terminal nodes that are connected thereto.

25. The communication network according to claim 15, wherein, at least one of communication paths for connecting between said superordinate nodes and communication paths for connecting between said superordinate node and said terminal nodes, is established by wireless communication.

16. A communication network comprising:

a plurality of superordinate nodes forming a cascade type topology; and

,

a plurality of terminal nodes, connected to at least one superordinate node from among said plurality of superordinate nodes, said plurality of terminal nodes forming a star type topology with said superordinate node connected, wherein

a plurality of said cascade type topologies are provided, and

a basestation is provided on the most upstream side, with respect to a predetermined communication direction, in communication paths which said plurality of cascade type topologies have,

an address of said superordinate node includes at least a branch number based on which said superordinate node discriminates between communication paths of said plurality of cascade type topologies connected to said basestation and a hop number that indicates a depth level of said superordinate node from said basestation to a downstream, and

an address of said terminal node includes said branch number, said hop number and a node sub-number based on which said superordinate node discriminates between said plurality of terminal nodes that are connected thereto.

17. The communication network according to claim 16, wherein

when an identical frame is transmitted to all nodes each including a predetermined hop number and a predetermined node sub-number as said address, a destination address of said frame is composed of said predetermined hop number and said predetermined node sub-number while said branch number is a wild card.

18. The communication network according to claim 16, wherein

when an identical frame is transmitted to all nodes each including a predetermined branch number and a predetermined node sub-number as said address, a destination address of said frame is composed of said predetermined branch number and said predetermined node sub-number while said hop number is a wild card.

19. The communication network according to claim 16, wherein

when an identical frame is transmitted to all nodes each including a predetermined branch number and a predetermined hop number as said address, a destination address of said frame is composed of said predetermined branch number and said predetermined hop number while said node sub-number is a wild card.

26. The communication network according to claim 16, wherein, at least one of communication paths for connecting between said superordinate nodes and communication paths for connecting between said superordinate node and said terminal nodes, is established by wireless communication.

21. An information processor in a communication network including a plurality of information processors forming a cascade type topology and a plurality of terminal nodes which are connected to at least one from among said plurality of said information processors, said plurality of terminal nodes forming a star type topology with said information processor connected, comprising:

a storage storing an address management table; and

,

a controller, when said terminal node is connected, assigning to said terminal node connected thereto, an address including a hop number that indicates a depth level of a self-node from the most upstream information processor to downstream with respect to a predetermined communication direction in communication paths of said cascade type topology, and said address including a node sub-number that is different from those of said plurality of terminal nodes connected thereto, and said controller registering said address into said address management table.

22. The information processor according to claim 21, wherein

said communication network includes a plurality of said cascade type topologies and a basestation disposed on the most upstream side, with respect to said predetermined communication direction, in communication paths of said plurality of cascade type topologies, and

said controller, when said terminal node is connected, assigning to said terminal node, an address including a branch number that indicates a communication path connected thereto among said communication paths of said plurality of cascade type topologies, said address including said hop number and said node sub-number, and said controller registering said address into said address management table.

23. An address assigning method for a communication network including a plurality of information processors forming a cascade type topology and a plurality of terminal nodes which are connected to at least one from among said plurality of said information processors, said plurality of terminal nodes forming a star type topology with said information processor connected,

wherein said superordinate node assigns to said terminal node connected thereto, an address including a hop number that indicates a depth level of a self-node from the most upstream node to downstream with respect to a predetermined communication direction in communication paths of said cascade type topology, and a node sub-number that is different from those of said plurality of terminal nodes connected thereto.

24. The address assigning method according to claim 23,

wherein said communication network includes a plurality of said cascade type topologies, and a basestation disposed on the most upstream side, with respect to said predetermined communication direction, in communication paths of said plurality of cascade type topologies, and

said superordinate node assigns to said terminal node connected thereto, an address including a branch number that indicates a communication path connected to thereto among said communication paths of said plurality of cascade type topologies, said address including said hop number and said node sub-number.