COMBINED OPEN LOOP/CLOSED LOOP METHOD FOR CONTROLLING UPLINK POWER OF A MOBILE STATION
First Claim
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1. A method implemented in a wireless transmit receive unit (WTRU), the method comprising:
- receiving signaling indicating an uplink (UL) resource assignment, a power control (PC) correction command and an assigned modulation coding set (MCS); and
applying a transmit power to an UL transmission, wherein the transmit power is based on a combination of a bandwidth of the UL resource assignment, an open loop PC component, a closed loop PC component and a delta factor related to an offset value, wherein;
the open loop PC component is based on pathloss and open loop PC parameters;
the closed loop PC component includes a correction factor;
the correction factor is based on the PC correction command; and
the offset value is related to the assigned MCS.
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Abstract
A method and apparatus are disclosed comprising a combined open loop/closed loop uplink power control scheme for E-UTRA. The combined open and closed loop method for UL intra-cell PC controls the wireless transmit receive unit (WTRU) transmit power spectral density (PSD), PSDTx, (e.g. power per RB).
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Citations
24 Claims
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1. A method implemented in a wireless transmit receive unit (WTRU), the method comprising:
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receiving signaling indicating an uplink (UL) resource assignment, a power control (PC) correction command and an assigned modulation coding set (MCS); and applying a transmit power to an UL transmission, wherein the transmit power is based on a combination of a bandwidth of the UL resource assignment, an open loop PC component, a closed loop PC component and a delta factor related to an offset value, wherein; the open loop PC component is based on pathloss and open loop PC parameters; the closed loop PC component includes a correction factor; the correction factor is based on the PC correction command; and the offset value is related to the assigned MCS. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A wireless transmit receive unit (WTRU) comprising a processor configured to:
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receive signaling indicating an uplink (UL) resource assignment, a power control (PC) correction command and an assigned modulation coding set (MCS); and apply a transmit power to an UL transmission, wherein the transmit power is based on a combination of a bandwidth of the UL resource assignment, an open loop PC component, a closed loop PC component and a delta factor related to an offset value, wherein; the open loop PC component is based on pathloss and open loop PC parameters; the closed loop PC component includes a correction factor; the correction factor is based on the PC correction command; and the offset value is related to the assigned MCS. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification