An uplink channel configuration method, comprising: configuring, by a network side device, an uplink transmission mode of a user equipment, UE, wherein the uplink transmission mode is with single carrier characteristics or with multi-carrier characteristics; transmitting, by the network side device, when the uplink transmission mode to be configured is different from its current uplink transmission mode of the UE, information about the uplink transmission mode to be configured to the UE, causing the UE to adopt the uplink transmission mode for uplink transmission, and obtaining channel quality information, CQI, accordingly, and reporting the CQI to the network side device; receiving, by the network side device, the CQI reported by the UE; and scheduling, by the network side device, the uplink channel according to the CQI received, wherein the uplink transmission mode with the single carrier characteristics is that the uplink transmission of the UE in a sub-frame is Physical Uplink Shared Channel, PUSCH, transmission only, or Physical Uplink Control Channel, PUCCH, transmission only; and the uplink transmission mode with the multi-carrier characteristics is that the uplink transmission of the UE in a sub-frame is anyone of the PUSCH transmission and PUCCH transmission, or both of PUSCH and PUCCH transmission, characterized in that the CQI is transmitting power headroom, PHR, when the uplink transmission mode is a transmission mode with the single carrier characteristics, the UE calculates the transmitting PHR through a formula PH ( i) = P CMAX - P PUSCH ( i), where P CMAX is the allowed maximum transmission power of the UE, P PUSCH (i) is the transmission power of PUSCH in the sub-frame i, and PH(i) is the transmitting PHR for the sub-frame i; and when the uplink transmission mode is another transmission mode with the multi-carrier characteristics, the UE calculates the transmitting PHR through another formula PH (i) = P CMAX - P PUSCH ( i) - - P PUCCH ( i), where P CMAX is the allowed maximum transmission power of the UE, P PUSCH (i) is the transmission power of PUSCH in the sub-frame i, P PUCCH is the transmission power of PUCCH in the sub-frame i, and PH (i) is the transmitting PHR for the sub-frame i. configuring, by a network side device, an uplink transmission mode of a user equipment, UE, wherein the uplink transmission mode is with single carrier characteristics or with multi-carrier characteristics; transmitting, by the network side device, when the uplink transmission mode to be configured is different from its current uplink transmission mode of the UE, information about the uplink transmission mode to be configured to the UE, causing the UE to adopt the uplink transmission mode for uplink transmission, and obtaining channel quality information, CQI, accordingly, and reporting the CQI to the network side device; receiving, by the network side device, the CQI reported by the UE; and scheduling, by the network side device, the uplink channel according to the CQI received, wherein the uplink transmission mode with the single carrier characteristics is that the uplink transmission of the UE in a sub-frame is Physical Uplink Shared Channel, PUSCH, transmission only, or Physical Uplink Control Channel, PUCCH, transmission only; and the uplink transmission mode with the multi-carrier characteristics is that the uplink transmission of the UE in a sub-frame is anyone of the PUSCH transmission and PUCCH transmission, or both of PUSCH and PUCCH transmission, characterized in that the CQI is transmitting power headroom, PHR, when the uplink transmission mode is a transmission mode with the single carrier characteristics, the UE calculates the transmitting PHR through a formula PH ( i) = P CMAX - P PUSCH ( i), where P CMAX is the allowed maximum transmission power of the UE, P PUSCH (i) is the transmission power of PUSCH in the sub-frame i, and PH(i) is the transmitting PHR for the sub-frame i; and when the uplink transmission mode is another transmission mode with the multi-carrier characteristics, the UE calculates the transmitting PHR through another formula PH (i) = P CMAX - P PUSCH ( i) - - P PUCCH ( i), where P CMAX is the allowed maximum transmission power of the UE, P PUSCH (i) is the transmission power of PUSCH in the sub-frame i, P PUCCH is the transmission power of PUCCH in the sub-frame i, and PH (i) is the transmitting PHR for the sub-frame i.