Communication network, information processor and address assigning method

• US 8,509,238 B2
• Filed: 11/16/2007
• Issued: 08/13/2013
• Est. Priority Date: 11/22/2006
• Status: Active Grant

• Current Assignee: NEC Platforms, Ltd. (NEC Corporation)
• Original Assignee: NEC Corporation, NEC Engineering Limited (NEC Corporation)
• Inventors: Aoki, Yuuichi, Kimura, Tohru, Yano, Hitoshi, Yoshida, Nobuhide, Taguchi, Daigo, Mitsuhashi, Akitake, Noda, Jun, Sukenari, Teruki, Suzuki, Kunihiro, Fukami, Koji
• Primary Examiner(s): Sheikh, Ayaz
• Assistant Examiner(s): Wong, Blanche
• Application Number:
  US12/515,899
• Publication Number:
  US 20100085969A1
• Time in Patent Office: 2,097 Days
• Field of Search: 370/392
• 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. A communication network comprising:

a basestation;

a plurality of superordinate nodes;

a plurality of terminal nodes;

a plurality of cascade type topologies, each cascade type topology including a different sub-plurality of the superordinate nodes, each cascade type topology being a different branch connected to the basestation and having a branch number; and

a plurality of star type topologies, each star type topology including a different sub-plurality of the terminal nodes and one of the superordinate nodes,

wherein each superordinate node, as a given superordinate node, has an address indicating the different branch of the cascade typology in which the given superordinate node is included, and indicating a hop number of a depth of the given superordinate node from the basestation within the cascade typology in which the given superordinate node is included,

and wherein each terminal node, as a given terminal node, has an address indicating the different branch of the cascade typology in which the superordinate node is included that is in the star type topology in which the given terminal node is also included, indicating the hop number of the address of the superordinate node included in the star type topology in which the given terminal node is also included, and indicating a node sub-number uniquely identifying the given terminal node within the star type topology in which the given terminal node is included.

2. The communication network according to claim 1, wherein

when a plurality of identical frames are transmitted that each have a node address including a predetermined hop number and a predetermined node sub-number, the node address of each identical frame includes a branch number that is a wild card.

3. The communication network according to claim 1, wherein

when a plurality of identical frames are transmitted that each have a node address including a predetermined branch number and a predetermined node sub-number, the node address of each identical frame includes a hop number that is a wild card.

4. The communication network according to claim 1, wherein

when a plurality of identical frames are transmitted that each have a node address including a predetermined branch number and a predetermined hop number, the node address of each identical frame includes a node sub-number that is a wild card.

5. The communication network according to claim 1, wherein at least a pair of the superordinate nodes and the terminal nodes communicate with one another in a wireless manner.

6. An information processor of a communication network including a basestation, a plurality of superordinate nodes where the information processor is one of the superordinate nodes, a plurality of terminal nodes, a plurality of cascade type topologies, and a plurality of star type topologies, each cascade type topology including a different sub-plurality of the superordinate nodes, each cascade type topology being a different branch connected to the basestation and having a branch number, each star type topology including a different sub-plurality of the terminal nodes and one of the superordinate nodes, the information processor comprising:

a storage device storing an address management table; and

a controller to assign;

each superordinate node, as a given superordinate node, an address indicating the different branch of the cascade typology in which the given superordinate node is included, and indicating a hop number of a depth of the given superordinate node from the basestation within the cascade typology in which the given superordinate node is included,

each terminal node, as a given terminal node, an address indicating the different branch of the cascade typology in which the superordinate node is included that is in the star type topology in which the given terminal node is also included, indicating the hop number of the address of the superordinate node included in the star type topology in which the given terminal node is also included, and indicating a node sub-number uniquely identifying the given terminal node within the star type topology in which the given terminal node is included,

wherein the controller is to register the address of each subordinate node and the address of each terminal node into the address management table.

7. An address assigning method comprising:

providing a communication network including a basestation, a plurality of superordinate nodes, a plurality of terminal nodes, a plurality of cascade type topologies, and a plurality of star type topologies, each cascade type topology including a different sub-plurality of the superordinate nodes, each cascade type topology being a different branch connected to the basestation and having a branch number, each star type topology including a different sub-plurality of the terminal nodes and one of the superordinate nodes;

assigning each superordinate node, as a given superordinate node, an address indicating the different branch of the cascade typology in which the given superordinate node is included, and indicating a hop number of a depth of the given superordinate node from the basestation within the cascade typology in which the given superordinate node is included; and

assigning each terminal node, as a given terminal node, an address indicating the different branch of the cascade typology in which the superordinate node is included that is in the star type topology in which the given terminal node is also included, indicating the hop number of the address of the superordinate node included in the star type topology in which the given terminal node is also included, and indicating a node sub-number uniquely identifying the given terminal node within the star type topology in which the given terminal node is included.