Uplink power control using received reference signal
First Claim
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1. A method for calculating a power level of uplink transmit power, the method comprising:
- receiving a reference signal;
obtaining a reference power level from the reference signal;
determining path loss based, at least in part, upon said reference power level signal;
receiving a value indicating an uplink interference level;
receiving an allocation of a specific uplink control channel;
determining an initial uplink transmit power level based, at least in part, upon said path loss and said uplink interference level; and
transmitting an uplink signal at said uplink transmit power level.
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Abstract
A user equipment (UE) receives a reference signal over a physical reference channel using a reference channel receiver and obtains reference power levels from the reference signal. The interference level is obtained and a path loss is calculated in response to the reference signal. Transmit power is then determined for an allocated uplink control channel based, at least in part, upon said path loss and said interference level.
18 Citations
13 Claims
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1. A method for calculating a power level of uplink transmit power, the method comprising:
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receiving a reference signal;
obtaining a reference power level from the reference signal;
determining path loss based, at least in part, upon said reference power level signal;
receiving a value indicating an uplink interference level;
receiving an allocation of a specific uplink control channel;
determining an initial uplink transmit power level based, at least in part, upon said path loss and said uplink interference level; and
transmitting an uplink signal at said uplink transmit power level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A user equipment (UE) capable of calculating a power level of uplink transmit power, the UE comprising:
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a receiver circuit for receiving a reference signal;
a reference power determining circuit for obtaining reference power levels from the received reference signal;
a path loss measurement circuit for measuring path loss based on the reference signal;
an uplink allocation circuit for receiving an allocation of a specific uplink control channel;
an uplink power level circuit for determining an initial uplink transmit power level and providing a value of an uplink interference;
a path loss receiving circuit for receiving signals which represent a measurement representing path loss of the reference signals; and
a transmitting circuit for transmitting signals which represent a measurement representing path loss of the reference signals. - View Dependent Claims (10, 11, 12, 13)
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Specification