COGNITIVE COMMUNICATION NETWORK SYSTEM AND COMMUNICATING METHOD THEREOF

• US 20110069638A1
• Filed: 09/24/2010
• Published: 03/24/2011
• Est. Priority Date: 09/24/2009
• Status: Active Grant

• Current Assignee: National Institute of Information and Communications Technology
• Original Assignee: National Institute of Information and Communications Technology
• Inventors: HARADA, Hiroshi, MIYAMOTO, Goh, SUN, Chen, FILIN, Stanislav, ISHIZU, Kentaro, DEMESSIE, Yohannes Alemseged, MURAKAMI, Homare, TRAN, Ha Nguyen
• Granted Patent: US 9,049,648 B2
• Time in Patent Office: Days
• US Class Current: 370/254
• CPC Class Codes: H04B 7/005 Control of transmission; Equalising
• CPC Class Codes: H04L 5/0032 Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
• CPC Class Codes: H04L 5/0035 Resource allocation in a cooperative multipoint environment
• CPC Class Codes: H04L 5/0064 Rate requirement of the data, e.g. scalable bandwidth, data priority
• CPC Class Codes: H04L 5/0092 Indication of how the channel is divided
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 48/10 using broadcasted information
• CPC Class Codes: H04W 48/18 Selecting a network or a communication service

Abstract

Object: To provide a mechanism and a function of a system that can determine a communication method and the like effectively utilizing frequency resources, considering priority of each communication, in a cognitive communication network system of a frequency shared type or the like assuming that a given frequency band is shared by a plurality of systems in use.

Solution: In a configuration in which a cognitive communication network system has a plurality of radio access networks 23 and a superior communication network 10 that provides a common platform at least to the radio access networks, in a plurality of base stations 23a on at least a part of the radio access network 23, base-station state obtaining means 232 that collect information relating to a state of the base station itself in the base station or a communication state and base-station communication reconfiguration managing means 231 that reconfigure at least one of either a selection of the base station to be used in the communication or a communication condition in the base station on the basis of the information collected by the base-station state obtaining means are provided.

Claims

1. A cognitive communication network system in which communication terminals conduct communication while presence of connection with a plurality of wired or wireless communication networks or a connection method (hereinafter referred to as a connection method and the like) are dynamically reconfigured, wherein

the communication network has a plurality of radio access networks and a superior communication network that provides a common platform to at least the radio access network;

network reconfiguration managing means that reconfigure at least one of either a selection of the radio access network used for the communication or a communication condition in the radio access network on the basis of information relating to the communication state in the radio access network (RAN) collected by RAN communication state obtaining means on the radio access network is disposed on the superior communication network; and

in a plurality of base stations on at least a part of the radio access network, base station state obtaining means that collect information relating to a state of the base station itself in the base station or the communication state; and

base-station communication reconfiguration managing means that reconfigure at least one of either the selection of the base station used for the communication or the communication condition in the base station on the basis of the information collected by the base-station state obtaining means are disposed.

2. The cognitive communication network system according to claim 1, wherein

in said base station, base-station setting means that set the connection methods and the like in the base station are disposed on the basis of a decision of said network reconfiguration managing means and said base-station communication reconfiguration managing means.

3. The cognitive communication network system according to claim 1, wherein

in said radio access network, inter-base station communicating means capable of exchanging a state at each base station or a reconfiguration result of base-station communication by connecting said base-station communication reconfiguration managing means of each base station is disposed.

4. The cognitive communication network system according to claim 1, further comprising

network-base station communicating means that exchange at least one of either the information relating to the superior communication network or the information relating to the state of the base station by connecting said network reconfiguration managing means and said base-station communication reconfiguration managing means to each other.

5. The cognitive communication network system according to claim 4, wherein

said base stations exchange the state in each base station or the reconfiguration result of the base-station communication with each other through the network reconfiguration managing means using said network-base station communicating means.

6. The cognitive communication network system according to claim 1, wherein

in said communication terminal, communication-terminal state obtaining means that collect information relating to a state of the communication terminal itself or the communication state and communication-terminal reconfiguration managing means that reconfigure communication conditions in the communication terminal on the basis of the information collected by the communication-terminal state obtaining means are disposed.

7. The cognitive communication network system according to claim 6, further comprising:

communication terminal-base station communicating means that exchange at least either one of information relating to the state of the base station or the information relating to the state of the communication terminal by connecting said communication-terminal reconfiguration managing means and said base-station communication reconfiguration managing means to each other.

8. The cognitive communication network system according to claim 6, further comprising

inter-communication-terminal communicating means capable of exchanging information relating to the state of the communication terminal with each other by connecting said communication-terminal reconfiguration managing means of said communication terminals to each other.

9. A base station in a radio access network in the cognitive communication network system according to claim 1, comprising:

the base-station state obtaining means that collects information relating to the state of the base station itself in the base station or the communication state; and

the base-station communication reconfiguration managing means that reconfigure at least one of either selection of the base station to be used for communication or the communication condition in the base station on the basis of the information collected by the base-station state obtaining means.

10. A communicating method in a cognitive communication network system in which communication terminals conduct communication while presence of connection with a plurality of wired or wireless communication networks or a connection method (hereinafter referred to as a connection method and the like) are dynamically reconfigured,

in a configuration in which the communication network has a plurality of radio access networks and a superior communication network that provides a common platform at least to the radio access networks, wherein

a RAN communication state obtaining process in which RAN communication state obtaining means collects information relating to a communication state in the radio access network (RAN);

and

a network reconfiguration managing process in which network reconfiguration managing means on the superior communication network reconfigures at least one of either a selection of the radio access network to be used for the communication or the communication condition in the radio access network on the basis of the information collected by the RAN communication state obtaining means are executed at a predetermined trigger; and

in the plurality of base stations on at least a part of the radio access network,

a base-station state obtaining process in which base-station state obtaining means collects information relating to a state of the base station itself in the base station or the communication state; and

a base-station communication reconfiguration managing process in which base-station communication reconfiguration managing means reconfigure at least either one of selection of the base station to be used for the communication or the communication condition in the base station are executed on the basis of the information collected by the base-station state obtaining means at a predetermined trigger.

11. The communicating method in the cognitive communication network system according to claim 10, wherein

in said radio access network,

an inter-base station communication process in which inter-base station communicating means exchange the state in the base station or the reconfiguration result of the base-station communication with each other by connecting the base-station reconfiguration managing means of each base station is provided.

12. The communicating method in the cognitive communication network system according to claim 10, wherein

in said superior communication network,

a network-base station communication process in which the network-base station communicating means exchange at least either one of the information relating to the superior communication network or the information relating to the state of the base station by connecting said network reconfiguration managing means and said base-station communication reconfiguration managing means is provided.

13. The communicating method in the cognitive communication network system according to claim 12, wherein

said base stations exchange the state in each base station or the reconfiguration result of the base-station communication through the network reconfiguration managing means using said network-base station communicating means.

14. The communicating method in the cognitive communication network system according to claim 10, wherein

in said communication terminal,

a communication-terminal state obtaining process in which communication-terminal state obtaining means collect information of a state of the communication terminal itself or information relating to the communication state;

and

a communication-terminal reconfiguration managing process in which communication-terminal reconfiguration managing means reconfigures the communication condition in the communication terminal on the basis of the information collected by the communication-terminal state obtaining means is provided.

15. The communicating method in the cognitive communication network system according to claim 14, wherein

in said radio access network,

communication terminal-base station communicating means exchange at least either one of the information relating to the state of the base station or the information relating to the state of the communication terminal by connecting said communication-terminal reconfiguration managing means and at least said base-station communication reconfiguration managing means.

16. The communicating method in the cognitive communication network system according to claim 14, wherein

in said communicating method,

the inter-communication terminal communicating means exchange information relating to the state of the communication terminal by connecting said communication-terminal reconfiguration management means of each said communication terminal to each other.