Repeater and method for operating such a repeater
First Claim
1. A telecommunications system, comprising:
- a master unit;
remote units;
wherein the remote units are configured to communicate with mobile radio terminals and to communicate with the master unit, where at least one of the remote units including a sensor and a control circuit, the sensor being configured to detect a parameter about a coverage environment, the control circuit being configured to cause the at least one of the remote units to switch between a passive operating state and an active operating state based on the parameter; and
wherein the at least one of the remote units transmits signals wirelessly at a higher power in the active operating state as compared to the passive operating state, wherein the control circuit is further configured to cause the at least one of the remote units to switch between the passive operating state and the active operating state at a rate that maintains a transmission of downlink signals by the at least one of the remote units.
1 Assignment
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Accused Products
Abstract
A repeater capable of emitting as little electromagnetic radiation as possible is described. The repeater can transmit communication signals between a base station and a network terminal in a radio transmission network, such as a mobile radio network. The repeater can include a transmitter that can transmit the communication signals as a radio signal to the network terminal. The repeater can also include a sensor for detecting a switching signal and a control unit that can change the transmitter between a passive operating state and an active operating state based on the switching signal. The transmission power of the transmitter can be lower in the passive operating state than in the active operating state.
23 Citations
20 Claims
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1. A telecommunications system, comprising:
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a master unit; remote units; wherein the remote units are configured to communicate with mobile radio terminals and to communicate with the master unit, where at least one of the remote units including a sensor and a control circuit, the sensor being configured to detect a parameter about a coverage environment, the control circuit being configured to cause the at least one of the remote units to switch between a passive operating state and an active operating state based on the parameter; and wherein the at least one of the remote units transmits signals wirelessly at a higher power in the active operating state as compared to the passive operating state, wherein the control circuit is further configured to cause the at least one of the remote units to switch between the passive operating state and the active operating state at a rate that maintains a transmission of downlink signals by the at least one of the remote units. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A distributed antenna system, comprising:
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a master unit; remote units; wherein the remote units are configured to communicate with mobile radio terminals and to communicate with the master unit, each of the remote units including a sensor configured to detect whether a mobile radio terminal is present in a coverage environment for an associated remote unit or whether a light is in an “
on”
state in the coverage environment;a control circuit; and wherein the control circuit is configured to cause the associated remote unit to switch from a default passive operating state to an active operating state based on the sensor detecting the mobile radio terminal in the coverage environment or the light being in the “
on”
state in the coverage environment, wherein the associated remote unit transmits signals wirelessly at a higher power in the active operating state as compared to the default passive operating state, wherein the switching function is further configured to cause the associated remote unit to switch between the default passive operating state and the active operating state at a rate that maintains a transmission of downlink signals by the associated remote unit. - View Dependent Claims (10, 11, 12, 13)
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14. A method, comprising:
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wirelessly transceiving signals in a coverage environment at a passive operating power level by a remote unit; detecting a change in a parameter in the coverage environment by a sensor in the remote unit; responsive to detecting the change in the parameter in the coverage environment, changing a power level of the remote unit to an active operating power level that is a higher power level than the passive operating power level;
wherein changing the power level is performed at a rate that maintains a transmission of downlink signals by the remote unit; andwirelessly transceiving signals with one or more mobile radio terminals in the coverage environment at the active operating power level by the remote unit. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification