Abstract
A method of determining the uplink transmission power, comprising: determining 101, by a user equipment, a transmission situation of at least one of: a physical uplink control channel, PUCCH, a physical channel uplink sharing, PUSCH and a polling reference signal, SRS, over another cell except a secondary cell in a subframe corresponding to a preamble to be transmitted over the secondary cell, in which the transmission situation determined by the equipment The user understands that at least one of a PUCCH, a PUSCH and an SRS must be transmitted over another cell in a subframe except a first subframe between subframes corresponding to the preamble to be transmitted over the secondary cell; and determining 102, through the user equipment, an uplink transmission power of the user equipment according to the determined transmission situation, by determining a second transmission power of the preamble according to the formula: ** Formula ** in the that i represents a subframe; PPRACH (i) represents the second transmission power of the preamble; PCMAX, c (i) represents a maximum allowable power of the secondary cell; PREAMBLE_RECEIVED_TARGET_POWER represents a target received power from the preamble; and PLc represents a loss of objective path of the secondary cell; wherein, that said at least one of a PUCCH, a PUSCH and an SRS has to be transmitted in another cell in a subframe except a first subframe between subframes corresponding to the preamble to be transmitted over the secondary cell, it comprises that the PUCCH has to be transmitted in another cell in the subframe except the first subframe between the subframes corresponding to the preamble to be transmitted over the secondary cell; and the determination, by the user equipment, of an uplink transmission power of the user equipment depending on the determined transmission situation, further comprises: determining, by the user equipment, a first transmission power of the PUCCH according to the formula: ** Formula ** where PPUCCH (i) represents the first transmission power of the PUCCH; PPUCCH_0 (i) represents a transmission power of the PUCCH obtained by the user equipment by performing uplink power control; PCMAX (i) represents the maximum allowable power; and PPRACH (i) represents the second transmission power of the preamble.
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| 4G | 05/05/2013 | ISLD-201305-001 | HUAWEI | No | Family Member | ||||
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Technologies
Power Control
Product
Use Cases
Wireless communication
Services
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