COMMUNICATION SYSTEM, BASE STATION, AND COMMUNICATION METHOD

• US 20150223113A1
• Filed: 08/29/2013
• Published: 08/06/2015
• Est. Priority Date: 08/29/2012
• Status: Active Grant

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Matsunaga, Yasuhiko
• Granted Patent: US 9,516,548 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04W 28/0861 between base stations
• CPC Class Codes: H04W 36/22 for handling the traffic
• CPC Class Codes: H04W 48/06 based on traffic conditions
• CPC Class Codes: H04W 52/343 taking into account loading or congestion level
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks
• CPC Class Codes: H04W 92/20 between access points

Abstract

Disclosed is a communication system in which information about the number of active users in each cell can be shared between base stations. A communication system according to the present exemplary embodiment includes a first base station controlling a first cell and a second base station connected to the first base station through an inter-base-station interface, wherein the first base station transmits operation information on the first cell to the second base station through the inter-base-station interface, wherein the operation information on the first cell includes information about a load on the first cell and information about the number of active users in the first cell.

Claims

1. A communication system comprising:

a first base station controlling a first cell; and

a second base station connected to the first base station through an inter-base-station interface,

wherein the first base station transmits operation information on the first cell to the second base station through the inter-base-station interface,

wherein the operation information on the first cell includes information about a load on the first cell and information about a number of active users in the first cell.

2. The communication system according to claim 1, wherein the operation information on the first cell includes information about a load on a predetermined service in the first cell and information about a number of active users of the predetermined service.

3. The communication system according to claim 1, wherein the operation information on the first cell includes information about, of the load on the first cell, a load arising from communication of users subscribing to a predetermined operator, and information about, of the active users in the first cell, a number of users subscribing to the predetermined operator.

4. The communication system according to claim 1, wherein the operation information on the first cell includes information about a probability distribution of user throughput in the first cell.

5. The communication system according to claim 1, wherein the operation information on the first cell includes a value of maximum transmission power and a set value of reference signal transmission power in the first cell.

6. The communication system according to claim 1,

wherein the second base station controls a second cell, and

the first base station receives operation information on the second cell through the inter-base-station interface and, based on the operation information on the first cell and the operation information on the second cell, performs control for load balancing between the first cell and the second cell.

22. The communication system according to claim 2, wherein the operation information on the first cell includes information about, of the load on the first cell, a load arising from communication of users subscribing to a predetermined operator, and information about, of the active users in the first cell, a number of users subscribing to the predetermined operator.

23. The communication system according to claim 2, wherein the operation information on the first cell includes information about a probability distribution of user throughput in the first cell.

7. A base station controlling a first cell, comprising:

a communication section that transmits operation information on the first cell to anther base station through an inter-base-station interface,

wherein the operation information on the first cell includes information about a load on the first cell and information about a number of active users in the first cell.

11. The base station according to claim 7, wherein the operation information on the first cell includes information about a load on a predetermined service in the first cell and information about a number of active users of the predetermined service.

12. The base station according to claim 7, wherein the operation information on the first cell includes information about, of the load on the first cell, a load arising from communication of users subscribing to a predetermined operator, and information about, of the active users in the first cell, a number of users subscribing to the predetermined operator.

13. The base station according to claim 7, wherein the operation information on the first cell includes information about a probability distribution of user throughput in the first cell.

14. The base station according to claim 7, wherein the operation information on the first cell includes a value of maximum transmission power and a set value of reference signal transmission power in the first cell.

8-10. -10. (canceled)

15. A communication method, comprising:

transmitting operation information on a first cell controlled by a first base station to a second base station through an inter-base-station interface,

wherein the operation information on the first cell includes information about a load on the first cell and information about a number of active users in the first cell.

16. The communication method according to claim 15, wherein the operation information on the first cell includes information about a load on a predetermined service in the first cell and information about a number of active users of the predetermined service.

17. The communication method according to claim 15, wherein the operation information on the first cell includes information about, of the load on the first cell, a load arising from communication of users subscribing to a predetermined operator, and information about, of the active users in the first cell, a number of users subscribing to the predetermined operator.

18. The communication method according to claim 15, wherein the operation information on the first cell includes information about a probability distribution of user throughput in the first cell.

19. The communication method according to claim 15, wherein the operation information on the first cell includes a value of maximum transmission power and a set value of reference signal transmission power in the first cell.

20. A program for causing a computer to function as a first base station controlling a first cell, the program causing the computer to implement the function of:

transmitting operation information on the first cell, which includes a load on the first cell and a number of active users in the first cell, to a second base station through an inter-base-station interface.

21. A recording medium that is a computer-readable information recording medium, the recording medium recording the program according to claim 20.