Patent ID: 9668220
Date: 2017-05-30
CPC Classifications: H04L,H04W

Claim:
1. A method for controlling uplink power, the method including: determining, by a UE, uplink information to be transmitted over one uplink carrier, wherein the uplink information comprises uplink information corresponding to a first eNB, and uplink information corresponding to a second eNB; and the first eNB is configured to at least schedule data to the UE over a first type of carrier, and the second eNB is configured to at least schedule data to the UE over a second type of carrier; and determining, by the UE, transmit power of at least one uplink channel carrying the uplink information, according to at least one set of pre-configured power control parameters for calculating transmit power of an uplink channel carrying the uplink information, and transmitting the corresponding uplink information in the at least one uplink channel over the one uplink carrier at the transmit power of the at least one uplink channel; wherein determining, by the UE, the transmit power of the at least one uplink channel carrying the uplink information, according to the at least one set of pre-configured power control parameters, and transmitting the corresponding uplink information in the at least one uplink channel over the one uplink carrier at the transmit power of the at least one uplink channel comprises: as a first approach, determining, by the UE, transmit power of one uplink channel carrying the uplink information corresponding to the first eNB, and the uplink information corresponding to the second eNB concurrently, according to one set of pre-configured power control parameters for calculating transmit power of an uplink channel carrying the uplink information, and transmitting the uplink information corresponding to the first eNB, and the uplink information corresponding to the second eNB in the one uplink channel over the one uplink carrier at the transmit power of the one uplink channel, wherein for each type of uplink channel carrying the uplink information, the UE is configured with only one set of power control parameters for calculating transmit power of that type of uplink channel; or as a second approach, determining, by the UE, transmit power of one uplink channel carrying uplink information corresponding to k different eNBs concurrently, according to k sets of pre-configured power control parameters for calculating transmit power of an uplink channel carrying the uplink information, and transmitting the uplink information corresponding to eNBs for which the uplink information needs to be transmitted in the current uplink subframe, among the k different eNBs in the one uplink channel over the one uplink carrier at the transmit power of the one uplink channel, wherein for each type of uplink channel carrying the uplink information, the UE is configured with k sets of power control parameters for calculating transmit power of that type of uplink channel, wherein k represents the number of eNBs serving the UE; or as a third approach, determining, by the UE, transmit power of one uplink channel carrying the uplink information corresponding to the first eNB, and the uplink information corresponding to the second eNB concurrently, according to two sets of pre-configured power control parameters for calculating transmit power of an uplink channel carrying the uplink information, and transmitting the uplink information corresponding to the first eNB, and the uplink information corresponding to the second eNB in the one uplink channel over the one uplink carrier at the transmit power of the one uplink channel, wherein for each type of uplink channel carrying the uplink information, the UE is configured with two sets of power control parameters for calculating transmit power of that type of uplink channel; or as a fourth approach, determining, by the UE, transmit power of a first uplink channel carrying the uplink information corresponding to the first eNB, and transmit power of a second uplink channel carrying the uplink information corresponding to the second eNB, respectively according to one set of pre-configured power control parameters for calculating transmit power of an uplink channel carrying the uplink information, and transmitting the uplink information corresponding to the first eNB in the first uplink channel over the one uplink carrier at the transmit power of the first uplink channel, and the uplink information corresponding to the second eNB in the second uplink channel over the one uplink carrier at the transmit power of the second uplink channel, wherein for each type of uplink channel carrying the uplink information, the UE is configured with only one set of power control parameters for calculating transmit power of that type of uplink channel; or as a fifth approach, determining, by the UE, transmit powers of k uplink channels carrying uplink information corresponding to k different eNBs, respectively according to k sets of pre-configured power control parameters for calculating transmit power of an uplink channel carrying the uplink information, and transmitting the uplink information corresponding to the k-th eNB in the k-th uplink channel over the one uplink carrier at the transmit power of the k-th uplink channel, wherein for each type of uplink channel carrying the uplink information, the UE is configured with k sets of power control parameters for calculating transmit power of that type of uplink channel, wherein k represents the number of eNBs serving the UE; or as a sixth approach, determining, by the UE, transmit power of a first uplink channel carrying the uplink information corresponding to the first eNB, and transmit power of a second uplink channel carrying the uplink information corresponding to the second eNB respectively according to two sets of pre-configured power control parameters for calculating transmit power of an uplink channel carrying the uplink information, and transmitting the uplink information corresponding to the first eNB in the first uplink channel over the one uplink carrier at the transmit power of the first uplink channel, and the uplink information corresponding to the second eNB in the second uplink channel over the one uplink carrier at the transmit power of the second uplink channel, wherein for each type of uplink channel carrying the uplink information, the UE is configured with two sets of power control parameters for calculating transmit power of that type of uplink channel; wherein for the first approach, determining, by the UE, the transmit power of the one uplink channel carrying the uplink information corresponding to the first eNB, and the uplink information corresponding to the second eNB concurrently, according to the one set of pre-configured power control parameters comprises: determining, by the UE, a Path Loss (PL) corresponding to the one uplink carrier based upon a pre-configured or pre-defined reference carrier, and determining the transmit power of the one uplink channel according to the one set of pre-configured power control parameters, and the PL, or for the second approach, determining, by the UE, the transmit power of the one uplink channel carrying the uplink information corresponding to the k different eNBs concurrently, according to the k sets of pre-configured power control parameters comprises: determining, by the UE, a PL corresponding to the one uplink carrier based upon a pre-configured or pre-defined reference carrier; determining k target transmit powers respectively according to the k sets of pre-configured power control parameters, and the PL; and taking the largest one or the average of the k target transmit powers as the transmit power of the one uplink channel; or determining, by the UE, k PLs corresponding to the one uplink carrier respectively based upon a pre-configured or pre-defined reference carrier, wherein each PL corresponds to one of the k sets of pre-configured power control parameters; determining k target transmit powers respectively according to the k sets of pre-configured power control parameters, and the k PLs respectively corresponding to the k sets of pre-configured power control parameters; and taking the largest one or the average of the k target transmit powers as the transmit power of the one uplink channel, or for the third approach, determining, by the UE, the transmit power of the one uplink channel carrying the uplink information corresponding to the first eNB, and the uplink information corresponding to the second eNB concurrently, according to the two sets of pre-configured power control parameters comprises: determining, by the UE, a PL corresponding to the one uplink carrier based upon a pre-configured or pre-defined reference carrier; to determine first target transmit power according to a first one of the two sets of pre-configured power control parameters, and the PL, and determining second target transmit power according to a second one of the two sets of pre-configured power control parameters, and the PL; and taking the larger one or the average of the determined two target transmit powers as the transmit power of the one uplink channel; or determining, by the UE, a first PL and a second PL corresponding to the one uplink carrier respectively based upon a pre-configured or pre-defined reference carrier, wherein the first PL corresponds to a first one of the two sets of pre-configured power control parameters, and the second PL corresponds to a second one of the two sets of pre-configured power control parameters; determining first target transmit power according to the first one of the two sets of pre-configured power control parameters, and the first PL, and determining second target transmit power according to the second one of the two sets of pre-configured power control parameters, and the second PL; and taking the larger one or the average of the determined two target transmit powers as the transmit power of the one uplink channel, or for the fourth approach, determining, by the UE, the transmit power of the first uplink channel carrying the uplink information corresponding to the first eNB, and the transmit power of the second uplink channel carrying the uplink information corresponding to the second eNB, respectively according to the one set of pre-configured power control parameters comprises: determining, by the UE, a PL corresponding to the one uplink carrier based upon a pre-configured or pre-defined reference carrier; determining a target transmit power according to the one set of pre-configured power control parameters, and the PL; and taking the determined target transmit power as the transmit power of the first uplink channel, and the transmit power of the second uplink channel; or determining, by the UE, a first PL and a second PL corresponding to the one uplink carrier respectively based upon the pre-configured or pre-defined reference carrier; and determining the transmit power of the first uplink channel according to the one set of pre-configured power control parameters, and the first PL corresponding to the one uplink carrier, and determining the transmit power of the second uplink channel according to the one set of pre-configured power control parameters, and the second PL corresponding to the one uplink carrier, or for the fifth approach, determining, by the UE, the transmit powers of the k uplink channels carrying the uplink information corresponding to the k different eNBs, respectively according to the k sets of pre-configured power control parameters comprises: determining, by the UE, a PL corresponding to the one uplink carrier based upon a pre-configured or pre-defined reference carrier, and determining the transmit powers of the k uplink channels carrying the uplink information corresponding to the k different eNBs, respectively according to the k sets of pre-configured power control parameters, and the PL; or determining, by the UE, k PLs corresponding to the one uplink carrier based upon a pre-configured or pre-defined reference carrier, wherein each PL corresponds to one of the k sets of pre-configured power control parameters; and determining the transmit powers of the k uplink channels carrying the uplink information corresponding to the k different eNBs, respectively according to the k sets of pre-configured power control parameters, and the k PLs respectively corresponding to the k sets of pre-configured power control parameters, or for the sixth approach, determining, by the UE, the transmit power of the first uplink channel carrying the uplink information corresponding to the first eNB, and the transmit power of the second uplink channel carrying the uplink information corresponding to the second eNB respectively according to the two sets of pre-configured power control parameters comprises: determining, by the UE, a PL corresponding to the one uplink carrier based upon a pre-configured or pre-defined reference carrier; and determining the transmit power of the first uplink channel according to a first one of the two sets of pre-configured power control parameters, and the PL, and determining the transmit power of the second uplink channel according to a second one of the two sets of pre-configured power control parameters, and the PL; or determining, by the UE, a first PL and a second PL corresponding to the one uplink carrier respectively based upon a pre-configured or pre-defined reference carrier; and determining the transmit power of the first uplink channel according to a first one of the two sets of pre-configured power control parameters, and the first PL, and determining the transmit power of the second uplink channel according to a second one of the two sets of pre-configured power control parameters, and the second PL; wherein determining, by the UE, the PL corresponding to the one uplink carrier based upon the pre-configured or pre-defined reference carrier comprises: obtaining, by the UE, a reference signal received power according to downlink data transmitted over the reference carrier by the first eNB, or the second eNB, or another eNB serving the UE other than the first eNB and the second eNB, and determining the PL corresponding to the one uplink carrier according to the reference signal received power, a pre-configured higher-layer filter parameter, and a reference signal power corresponding to the reference carrier; or determining, by the UE, the k PLs corresponding to the one uplink carrier based upon the pre-configured or pre-defined reference carrier comprises: obtaining, by the UE, k reference signal received powers according to downlink data transmitted over the reference carrier respectively by the k different eNBs serving the UE, and determining the k PLs corresponding to the one uplink carrier respectively according to the k reference signal received powers, a pre-configured higher-layer filter parameter, and a reference signal power corresponding to the reference carrier; or obtaining, by the UE, k reference signal received powers according to downlink data transmitted over the reference carrier respectively by the k different eNBs serving the UE, and determining the k PLs corresponding to the one uplink carrier respectively according to the k reference signal received powers, k pre-configured higher-layer filter parameters, and a reference signal power corresponding to the reference carrier; or obtaining, by the UE, k reference signal received powers according to downlink data transmitted over the reference carrier respectively by the k different eNBs serving the UE, and determining the k PLs corresponding to the one uplink carrier respectively according to the k reference signal received powers, a pre-configured higher-layer filter parameter, and k reference signal powers corresponding to the reference carrier; or obtaining, by the UE, k reference signal received powers according to downlink data transmitted over the reference carrier respectively by the k different eNBs serving the UE, and determining the k PLs corresponding to the one uplink carrier respectively according to the k reference signal received powers, k pre-configured higher-layer filter parameters, and k reference signal powers corresponding to the reference carrier; or determining, by the UE, the first PL and the second PL corresponding to the one uplink carrier based upon the pre-configured or pre-defined reference carrier comprises: obtaining, by the UE, a first reference signal received power according to downlink data transmitted by the first eNB over the reference carrier, and obtaining a second reference signal received power according to downlink data transmitted by the second eNB over the reference carrier; and determining the first PL according to the first reference signal received power, a pre-configured higher-layer filter parameter, and a reference signal power corresponding to the reference carrier, and determining the second PL according to the second reference signal received power, the pre-configured higher-layer filter parameter, and the reference signal power corresponding to the reference carrier; or obtaining, by the UE, a first reference signal received power according to downlink data transmitted by the first eNB over the reference carrier, and obtaining a second reference signal received power according to downlink data transmitted by the second eNB over the reference carrier; and determining the first PL according to the first reference signal received power, a first pre-configured higher-layer filter parameter, and a reference signal power corresponding to the reference carrier, and determining the second PL according to the second reference signal received power, a second pre-configured higher-layer filter parameter, and the reference signal power corresponding to the reference carrier; or obtaining, by the UE, a first reference signal received power according to downlink data transmitted by the first eNB over the reference carrier, and obtaining a second reference signal received power according to downlink data transmitted by the second eNB over the reference carrier; and determining the first PL according to the first reference signal received power, a pre-configured higher-layer filter parameter, and a first reference signal power corresponding to the reference carrier, and determining the second PL according to the second reference signal received power, the pre-configured higher-layer filter parameter, and a second reference signal power corresponding to the reference carrier; or obtaining, by the UE, a first reference signal received power according to downlink data transmitted by the first eNB over the reference carrier, and obtaining a second reference signal received power according to downlink data transmitted by the second eNB over the reference carrier; and determining the first PL according to the first reference signal received power, a first pre-configured higher-layer filter parameter, and a first reference signal power corresponding to the reference carrier, and determining the second PL according to the second reference signal received power, a second pre-configured higher-layer filter parameter, and a second reference signal power corresponding to the reference carrier.