Communication terminal, power save processing method to be performed by the communication terminal, program for executing the method, and recording medium containing the program
First Claim
1. A communication terminal capable of concurrently establishing communication links with a plurality of slave communication terminals, comprising:
- a storage section operable to store, with respect to each slave communication terminal having a communication link established thereto;
a communication cycle for the communication link, a communication slot to be used by the communication link, and information concerning whether the communication link is in a predetermined power save mode for performing a predetermined power save operation;
an input section operable to receive a request, directed to one or more of the plurality of slave communication terminals having a communication link established thereto, to cause the one or more slave communication terminals to transition to the power save mode;
an adjustment section operable to adjust the communication slots used by the communication links to all slave communication terminals to which the request is directed so that the communication slots together span a continuous range, the adjustment being made by referring to a content stored in the storage section each time the input section receives the request;
a control section operable to, in accordance with the communication slots having been adjusted by the adjustment section, cause each slave communication terminal to transition to the power save mode, and storing information indicating that the slave communication terminal is in the power save mode to the storage section; and
an execution section operable to, after all of the slave communication terminals having communication links established thereto have transitioned to the power save mode, place the communication terminal itself in a power save state during unused slots.
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Accused Products
Abstract
There is provided a power save processing method to be performed by a communication terminal capable of con-currently establishing communication links with a plurality of slave communication terminals, which reduces the transition time and provides an increased power save operation time. When a power save operation is performed at a plurality of slave communication terminals having asynchronous communication links established with the master communication terminal, the master communication terminal sets a communication start time and a communication duration for each communication link such that the communication slots used for the communication links are huddled together so as to span one continuous range, assuming that the communication links all have the same communication cycle. In accordance with the parameters thus set, the master communication terminal negotiates with the plurality of slave communication terminals. Then, the master communication terminal itself performs a power save operation during the continuous period corresponding to unused slots which has been obtained through the above adjustments.
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Citations
11 Claims
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1. A communication terminal capable of concurrently establishing communication links with a plurality of slave communication terminals, comprising:
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a storage section operable to store, with respect to each slave communication terminal having a communication link established thereto;
a communication cycle for the communication link, a communication slot to be used by the communication link, and information concerning whether the communication link is in a predetermined power save mode for performing a predetermined power save operation;
an input section operable to receive a request, directed to one or more of the plurality of slave communication terminals having a communication link established thereto, to cause the one or more slave communication terminals to transition to the power save mode;
an adjustment section operable to adjust the communication slots used by the communication links to all slave communication terminals to which the request is directed so that the communication slots together span a continuous range, the adjustment being made by referring to a content stored in the storage section each time the input section receives the request;
a control section operable to, in accordance with the communication slots having been adjusted by the adjustment section, cause each slave communication terminal to transition to the power save mode, and storing information indicating that the slave communication terminal is in the power save mode to the storage section; and
an execution section operable to, after all of the slave communication terminals having communication links established thereto have transitioned to the power save mode, place the communication terminal itself in a power save state during unused slots. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A power save processing method to be performed by a communication terminal capable of concurrently establishing communication links with a plurality of slave communication terminals, comprising the steps of:
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receiving a request, directed to one or more of the plurality of slave communication terminals having a communication link established thereto, to cause the one or more slave communication terminals to transition to a predetermined power save mode for performing a predetermined power save operation;
each time the input section receives the request, adjusting the communication slots used by the communication links to all slave communication terminals to which the request is directed so that the communication slots together span a continuous range;
in accordance with the communication slots having been adjusted, causing each slave communication terminal to transition to the power save mode; and
after all of the slave communication terminals having communication links established thereto have transitioned to the power save mode, placing the communication terminal itself in a power save state during unused slots.
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10. A program to be executed by a communication terminal capable of concurrently establishing communication links with a plurality of slave communication terminals, comprising the steps, performed by the communication terminal, of:
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receiving a request, directed to one or more of the plurality of slave communication terminals having a communication link established thereto, to cause the one or more slave communication terminals to transition to a predetermined power save mode for performing a predetermined power save operation;
each time the input section receives the request, adjusting the communication slots used by the communication links to all slave communication terminals to which the request is directed so that the communication slots together span a continuous range;
in accordance with the communication slots having been adjusted, causing each slave communication terminal to transition to the power save mode; and
after all of the slave communication terminals having communication links established thereto have transitioned to the power save mode, placing the communication terminal itself in a power save state during unused slots.
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11. A computer-readable recording having recorded thereon a program to be executed by a communication terminal capable of concurrently establishing communication links with a plurality of slave communication terminals, comprising the steps, performed by the communication terminal, of:
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receiving a request, directed to one or more of the plurality of slave communication terminals having a communication link established thereto, to cause the one or more slave communication terminals to transition to a predetermined power save mode for performing a predetermined power save operation;
each time the input section receives the request, adjusting the communication slots used by the communication links to all slave communication terminals to which the request is directed so that the communication slots together span a continuous range;
in accordance with the communication slots having been adjusted, causing each slave communication terminal to transition to the power save mode; and
after all of the slave communication terminals having communication links established thereto have transitioned to the power save mode, placing the communication terminal itself in a power save state during unused slots.
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Specification