BASE STATION, COMMUNICATION TERMINAL, METHOD FOR COMMUNICATION AT BASE STATION, METHOD FOR COMMUNICATION AT COMMUNICATION TERMINAL, AND COMMUNICATION SYSTEM

• US 20100190505A1
• Filed: 06/04/2009
• Published: 07/29/2010
• Est. Priority Date: 07/28/2008
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: SEKI, Hiroyuki, SHIIZAKI, Kotaro, KAWABATA, Kazuo, NAKAGAWA, Takao
• Granted Patent: US 8,270,989 B2
• Time in Patent Office: Days
• US Class Current: 455/452.1
• CPC Class Codes: H04W 52/0261 managing power supply demand, e.g. depending on battery level
• CPC Class Codes: H04W 72/566 of the information or information source or recipient
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

According to priorities determined on the basis of a number of pieces of battery information which concern batteries of a number of communication terminals and each of which is received from the communication terminals, data communication with communication terminals are controlled. The priorities are varied, irrespective of a variation in the pieces of battery information, according to a rule predetermined.

Claims

1. A base station communicable with a plurality of communication terminals, comprising:

a communication controller that controls data communication with the plurality of communication terminals in accordance with a plurality of priorities determined based on a plurality of battery information pieces about batteries of the plurality of communication terminals each of which battery information pieces is received from one of the plurality of communication terminals; and

a priority controller that varies, irrespective of a variation in the plurality of battery information pieces, the plurality of priorities in accordance with a rule predetermined.

2. The base station according to claim 1, wherein the rule lowers the highest priority among the plurality of priorities.

3. The base station according to claim 1, wherein the rule lowers a priority which is equal to or greater than a first threshold value among the plurality of priorities.

4. The base station according to claim 1, wherein the rule lowers a priority among the plurality of priorities when the number of times that data transmission has been performed under communication control according to the priority is equal to or greater than a second threshold value.

5. The base station according to claim 1, wherein the rule lowers a priority having a degree of a variation in the battery information piece is less than a third threshold value among the plurality of priorities.

6. The base station according to claim 2, wherein the rule raises the remaining priorities in accordance with the lowering of the highest priority.

7. A communication terminal communicable with a base station, comprising:

an information transmitter that transmits a battery information piece about a battery of the communication terminal, wherein

the communication terminal is controlled to communicate with the base station in accordance with a priority determined based on a plurality of the battery information pieces by the base station, the priority being varied, irrespective of a variation in the battery information pieces, in accordance with a rule predetermined.

8. A method for communication of a communication terminal communicable with a base station, comprising:

at each of the plurality of communication terminals,

transmitting a battery information piece of the communication terminal to the base station so that the base station determines a priority of each said communication terminal;

at the base station,

performing data communication with the plurality of communication terminals in accordance with a plurality of the priorities; and

performing data communication in accordance with the plurality of priorities varied, irrespective of a variation in a plurality of the battery information pieces, in accordance with a rule predetermined.