Methods and apparatus for use in a wireless communications system that uses a multi-mode base station
First Claim
1. A method operating a base station, comprising:
- operating in an active mode of operation during a first period of time, said active mode of operation including transmitting synchronization signals at a first rate; and
operating in a transmit standby mode of operation during a second period of time during which at least some of said synchronization signals are transmitted at at least one of;
i) a lower rate than in said active mode, and ii) at a lower power level than said synchronization signals transmitted in said active mode.
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Accused Products
Abstract
A multi-mode base station includes a transmit standby mode and an active mode. Transmit standby mode of base station operation is a low power/low interference level of operation as compared to active mode. In transmit standby mode at least some of the synchronization signaling such as pilot tone signaling is reduced in power level and/or rate with respect to the active mode. In transmit standby mode, the base station has no active state registered wireless terminals being serviced but may have some sleep state registered wireless terminals being serviced. Mode transitions from active to transmit standby may be in response to: a detected period of inactivity, scheduling information, base station mode change signals, and/or detected wireless terminal state transition. Mode transitions from transmit standby to active may be in response to: scheduling information, access signals, wake-up signals, hand-off signals, wireless terminal state change signals, and/or base station mode change signals.
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Citations
30 Claims
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1. A method operating a base station, comprising:
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operating in an active mode of operation during a first period of time, said active mode of operation including transmitting synchronization signals at a first rate; and
operating in a transmit standby mode of operation during a second period of time during which at least some of said synchronization signals are transmitted at at least one of;
i) a lower rate than in said active mode, and ii) at a lower power level than said synchronization signals transmitted in said active mode. - View Dependent Claims (5, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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- 2. The method of claim l, wherein the average transmission power level of said synchronization signals during said first period of time is higher than the average transmission power level of said at least some periodic signals during the second period of time.
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23. A base station, comprising:
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a transmitter for transmitting signals;
a first control module for controlling the transmission of synchronization signals during a first active mode of operation, said first control module controlling the transmission of at least some synchronization signals at a first rate and a first power level during said first active mode of operation; and
a second control module for controlling the transmission of synchronization signals during a second synchronization signal mode of operation, said second control module controlling the transmission of said at least some synchronization signals at a second rate and a second power level wherein at least one of said second rate and second power level are reduced relative to the first rate and first power level respectively. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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Specification