Power control method, user equipment, and base station for carrier aggregation with different configurations

A power control method, comprising:

• if a base station does not receive, in a previous uplink subframe of a current uplink subframe on one carrier, a physical uplink control channel (PUCCH) sent by a user equipment UE, determining, by the base station, according to a PUCCH transmit power used when the UE sends a latest PUCCH from among multiple carriers, a power adjustment value of the one carrier, wherein the multiple carriers comprise the one carrier;
• generating, by the base station, a transmitter power control (TPC) command that carries the power adjustment value of the one carrier;
• sending, by the base station, the TPC command to the UE, to notify the UE of the power adjustment value of the one carrier;
• and
• adjusting a transmit power of the one carrier according to the power adjustment value;
• for each carrier, calculating, by the UE, a time difference between a current moment and a moment when the latest PUCCH is sent on the each carrier;
• querying, by the UE, a carrier with the smallest time difference;
• acquiring, by the UE, a PUCCH transmit power used when a latest PUCCH is sent on the found carrier;
• and
• obtaining, by the UE, according to the TPC command, the power adjustment value in the found power adjustment value set.

A power control method, comprising:

• receiving, by a user equipment (UE), a transmitter power control (TPC) command sent by a base station, wherein the TPC command is used to indicate a power adjustment value of a secondary component carrier (SCC);
• performing, by the UE, according to a PUCCH transmit power used when a latest physical uplink control channel (PUCCH) is sent on the SCC and the power adjustment value, TPC accumulation to obtain an updated PUCCH transmit power of the SCC;
• and
• adjusting a transmit power of the SCC according to the power adjustment value;
• for each carrier, calculating, by UE, a time difference between a current moment and a moment when the latest PUCCH is sent on the each carrier;
• querying, by the UE, a carrier with the smallest time difference;
• acquiring, by the UE, a PUCCH transmit power used when a latest PUCCH is sent on the found carrier;
• and
• obtaining, by the UE, according to the TPC command, the power adjustment value in the found power adjustment value set.

A power control method, comprising:

• determining, by a base station, according to a physical uplink control channel (PUCCH)transmit power used when a user equipment (UE) sends a latest PUCCH on a secondary component carrier (SCC), a power adjustment value of the SCC;
• generating, by the base station, a transmitter power control (TPC) command that carries the power adjustment value of the SCC;
• sending, by the base station, the TPC command to the UE, to notify the UE of the power adjustment value of the SCC;
• and
• adjusting a transmit power of the SCC according to the power adjustment value;
• for each carrier, calculating, by UE, a time difference between a current moment and a moment when the latest PUCCH is sent on the each carrier;
• querying, by the UE, a carrier with the smallest time difference;
• acquiring, by the UE, a PUCCH transmit power used when a latest PUCCH is sent on the found carrier;
• and
• obtaining, by the UE, according to the TPC command, the power adjustment value in the found power adjustment value set.

A user equipment, comprising:

• a processor, and
• a memory storing instructions that, when executed by the processor, cause the processor to;
• receive a transmitter power control (TPC) command sent by a base station, wherein the TPC command is used to indicate a power adjustment value of one carrier;
• if the user equipment does not send a physical uplink control channel (PUCCH) in a previous uplink subframe of a current uplink subframe of the one carrier, perform, according to a PUCCH transmit power used when the UE sends a latest PUCCH from among multiple carriers and the power adjustment value, TPC accumulation to obtain an updated PUCCH transmit power of the one carrier, wherein the multiple carriers comprise the one carrier;
• and
• adjust transmit power of the one carrier according to the power adjustment value;
• for each carrier, calculating, by UE, a time difference between a current moment and a moment when the latest PUCCH is sent on the each carrier;
• query, by the UE, a carrier with the smallest time difference;
• acquire, by the UE, a PUCCH transmit power used when a latest PUCCH is sent on the found carrier;
• and
• obtain, by the UE, according to the TPC command, the power adjustment value in the found power adjustment value set.

A user equipment, comprising:

• a receiver, configured to receive a transmitter power control (TPC) command sent by a base station, wherein the TPC command is used to indicate a power adjustment value of an SCC;
• a processor configured to perform, according to a PUCCH transmit power used when a latest physical uplink control channel (PUCCH) is sent on the SCC and the power adjustment value, TPC accumulation to obtain an updated PUCCH transmit power of the SCC;
• and
• the processor configured to adjust a transmit power of the SCC according to the power adjustment value;
• for each carrier, calculating, by UE, a time difference between a current moment and a moment when the latest PUCCH is sent on the each carrier;
• querying, by the UE, a carrier with the smallest time difference;
• acquiring, by the UE, a PUCCH transmit power used when a latest PUCCH is sent on the found carrier;
• and
• obtaining, by the UE, according to the TPC command, the power adjustment value in the found power adjustment value set.

A base station, comprising:

• a processor, and
• a memory storing instructions that, when executed by the processor, cause the processor to;
• when the base station does not receive, in a previous uplink subframe of a current uplink subframe on one carrier, a physical uplink control channel (PUCCH) sent by a user equipment (UE), determine, according to a PUCCH transmit power used when the UE sends a latest PUCCH from among multiple carriers, a power adjustment value of the one carrier, wherein the multiple carriers comprise the one carrier;
• generate a transmitter power control (TPC) command that carries the power adjustment value of the one carrier;
• send the TPC command to the UE, to notify the UE of the power adjustment value of the one carrier;
• and
• adjust a transmit power of the one carrier according to the power adjustment value;
• for each carrier, calculating, by UE, a time difference between a current moment and a moment when the latest PUCCH is sent on the each carrier;
• query, by the UE, a carrier with the smallest time difference;
• acquiring, by the UE, a PUCCH transmit power used when a latest PUCCH is sent on the found carrier;
• and
• obtain, by the UE, according to the TPC command, the power adjustment value in the found power adjustment value set.

A base station, comprising:

• a processor, and
• a memory storing instructions that, when executed by the processor, cause the processor to;
• determine, according to a physical uplink control channel (PUCCH) transmit power used when a user equipment (UE) sends a latest PUCCH on a secondary component carrier (SCC), a power adjustment value of the SCC;
• generate a transmitter power control (TPC) command that carries the power adjustment value of the SCC;
• send the TPC command to the UE, to notify the UE of the power adjustment value of the SCC;
• and
• adjust a transmit power of the SCC according to the power adjustment value;
• for each carrier, calculating, by the UE, a time difference between a current moment and a moment when the latest PUCCH is sent on the each carrier;
• querying, by the UE, a carrier with the smallest time difference;
• acquiring, by the UE, a PUCCH transmit power used when a latest PUCCH is sent on the found carrier;
• and
• obtaining, by the UE, according to the TPC command, the power adjustment value in the found power adjustment value set.