| 摘要 |
A method and apparatus for reducing power consumption in a network device (104, 105, 106, 107) is provided. A network device (104, 105, 106, 107) is placed in a quiescent mode and scheduled to switch to an active mode at a scheduled time. At the scheduled time, the network device (104, 105, 106, 107) is activated. A control message (402, 403, 404, 405) is received by the network device (104, 105, 106, 107). The control message (402, 403, 404, 405) includes an indication as to whether or not the network device (104, 105, 106, 107) should remain in the active mode in preparation of receiving a data message (608, 609). If the control message (402, 403, 404, 405) indicates that the network device (104, 105, 106, 107) need not remain in the active mode, the network device (104, 105, 106, 107) sets a new scheduled time and returns to the quiescent mode. However if the control message (402, 403, 404, 405) indicates that the network device (104, 105, 106, 107) should remain in the active mode in preparation of receiving a data message (608, 609), the network device (104, 105, 106, 107) remains in the active mode and receives the data message (608, 609). After the data message (608, 609) has been received, the network device (104, 105, 106, 107) returns to the quiescent mode. Thus, power consumption in the network device (104, 105, 106, 107) is reduced.
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