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US 10,433,257 B2Granted
Power control method and apparatus for uplink control channel
AssigneeHuawei Technologies Co., Ltd.
InventorsZhiyu Yan, Yongxia Lyu, Lei Guan, Sha Ma
Life of this patent
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Abstract
A power control method and apparatus for an uplink control channel are provided. The method includes: determining, by user equipment, to send first uplink control information on a first PUCCH and in a subframe i; determining transmit power for sending the first uplink control information on the first PUCCH and in the subframe i. In the embodiments of the present invention, the transmit power is determined by using a sum of a base power adjustment value and any one of a first power adjustment value determined according to a quantity of bits of the first uplink control information.
Claims20
A power control method for a physical uplink control channel (PUCCH), comprising:
- determining, by user equipment, to send first uplink control information on a first PUCCH and in a subframe i, wherein the first uplink control information comprises channel state information (CSI), a hybrid automatic repeat request-acknowledgment (HARQ-ACK), and/or a scheduling request (SR);
- determining, by the user equipment, transmit power for sending the first uplink control information on the first PUCCH and in the subframe i, wherein the transmit power is a sum of a base power adjustment value and any one of a first power adjustment value, a second power adjustment value, a third power adjustment value, a fourth power adjustment value, or a fifth power adjustment value;
- and
- sending, by the user equipment, the first uplink control information on the first PUCCH by using power that is not greater than the transmit power, wherein
- (a) the first power adjustment value is a power adjustment value determined by the user equipment according to a quantity of bits of the first uplink control information,
- (b) the second power adjustment value is a power adjustment value determined by the user equipment according to the quantity of the bits of the first uplink control information and a quantity of resources of the first PUCCH,
- (c) the third power adjustment value is a power adjustment value determined by the user equipment according to the quantity of the resources of the first PUCCH and a ratio of the quantity of the bits of the first uplink control information to the quantity of the resources of the first PUCCH,
- (d) the fourth power adjustment value is a power adjustment value determined by the user equipment according to the quantity of the resources of the first PUCCH, and the fifth power adjustment value is a power adjustment value determined by the user equipment according to the quantity of the resources of the first PUCCH and a ratio of a quantity of bits of second uplink control information to a quantity of resources occupied on the first PUCCH by the second uplink control information, or
- (e) the fifth power adjustment value is a power adjustment value determined by the user equipment according to the quantity of the resources of the first PUCCH and a ratio of a quantity of bits of the second uplink control information to the quantity of the resources of the first PUCCH, wherein the second uplink control information is a subset of the first uplink control information;
- and
- the base power adjustment value comprises a sum of PO_PUCCH and PLc, or the base power adjustment value comprises a sum of PO_PUCCH and αc·PLc, wherein
- PO_PUCCH is a value configured for the user equipment by a network device by using higher layer signaling;
- PLc is a path loss that is determined by the user equipment and that is of a downlink of a cell c in which the first PUCCH is located;
- and
- αc is a path loss factor that is configured for the user equipment by the network device and that is of the cell c in which the first PUCCH is located.
12 more elements
A power control method for a physical uplink control channel (PUCCH), comprising:
- determining, by a network device, that user equipment is to send first uplink control information on a first PUCCH and in a subframe i, wherein the first uplink control information comprises channel state information CSI, a hybrid automatic repeat request-acknowledgment (HARQ-ACK), and/or a scheduling request (SR);
- determining, by the network device, transmit power for sending, by the user equipment, the first uplink control information on the first PUCCH and in the subframe i, wherein the transmit power is a sum of a base power adjustment value and any one of a first power adjustment value, a second power adjustment value, a third power adjustment value, a fourth power adjustment value, or a fifth power adjustment value;
- and
- receiving, by the network device, the first uplink control information that is sent by the user equipment on the first PUCCH by using power that is not greater than the transmit power, wherein
- (a) the first power adjustment value is a power adjustment value determined by the user equipment according to a quantity of bits of the first uplink control information,
- (b) the second power adjustment value is a power adjustment value determined by the user equipment according to the quantity of the bits of the first uplink control information and a quantity of resources of the first PUCCH,
- (c) the third power adjustment value is a power adjustment value determined by the user equipment according to the quantity of the resources of the first PUCCH and a ratio of the quantity of the bits of the first uplink control information to the quantity of the resources of the first PUCCH,
- (d) the fourth power adjustment value is a power adjustment value determined by the user equipment according to the quantity of the resources of the first PUCCH, and
- (e) the fifth power adjustment value is a power adjustment value determined by the user equipment according to the quantity of the resources of the first PUCCH and a ratio of a quantity of bits of second uplink control information to a quantity of resources occupied on the first PUCCH by the second uplink control information, or the fifth power adjustment value is a power adjustment value determined by the user equipment according to the quantity of the resources of the first PUCCH and a ratio of a quantity of bits of the second uplink control information to the quantity of the resources of the first PUCCH, wherein the second uplink control information is a subset of the first uplink control information;
- and
- the base power adjustment value comprises a sum of PO_PUCCH and PLc, or the base power adjustment value comprises a sum of PO_PUCCH and αc·PLc, wherein
- PO_PUCCH is a value configured for the user equipment by the network device using higher layer signaling;
- PLc is a path loss that is determined by the user equipment and that is of a downlink of a cell c in which the first PUCCH is located;
- and
- αc is a path loss factor that is configured for the user equipment by the network device and that is of the cell c in which the first PUCCH is located.
12 more elements
User equipment, comprising:
- a processor;
- and
- a memory coupled to the processor, storing processor-readable medium which when executed causes the processor to implement operations including:
- determining that first uplink control information is to be sent on a first physical uplink control channel (PUCCH) and in a subframe i, wherein the first uplink control information comprises channel state information (CSI), a hybrid automatic repeat request-acknowledgment (HARQ-ACK), and/or a scheduling request (SR);
- determining transmit power for sending the first uplink control information on the first PUCCH and in the subframe i, wherein the transmit power is a sum of a base power adjustment value and any one of a first power adjustment value, a second power adjustment value, a third power adjustment value, a fourth power adjustment value, or a fifth power adjustment value;
- and
- sending the first uplink control information on the first PUCCH by using power that is not greater than the transmit power, wherein
- (a) the first power adjustment value is a power adjustment value determined by the user equipment according to a quantity of bits of the first uplink control information,
- (b) the second power adjustment value is a power adjustment value determined by the user equipment according to the quantity of the bits of the first uplink control information and a quantity of resources of the first PUCCH,
- (c) the third power adjustment value is a power adjustment value determined by the user equipment according to the quantity of the resources of the first PUCCH and a ratio of the quantity of the bits of the first uplink control information to the quantity of the resources of the first PUCCH,
- (d) the fourth power adjustment value is a power adjustment value determined by the user equipment according to the quantity of the resources of the first PUCCH, and
- (e) the fifth power adjustment value is a power adjustment value determined by the user equipment according to the quantity of the resources of the first PUCCH and a ratio of a quantity of bits of second uplink control information to a quantity of resources occupied on the first PUCCH by the second uplink control information, or the fifth power adjustment value is a power adjustment value determined by the user equipment according to the quantity of the resources of the first PUCCH and a ratio of a quantity of bits of the second uplink control information to the quantity of the resources of the first PUCCH, wherein the second uplink control information is a subset of the first uplink control information;
- and
- the base power adjustment value comprises a sum of PO_PUCCH and PLc, or the base power adjustment value comprises a sum of PO_PUCCH and αc·PLc, wherein
- OO_PUCCH is a value configured for the user equipment by the network device using higher layer signaling;
- PLc is a path loss that is determined by the user equipment and that is of a downlink of a cell c in which the first PUCCH is located;
- and
- αc is a path loss factor that is configured for the user equipment by the network device and that is of the cell c in which the first PUCCH is located.
15 more elements
A network device, comprising:
- a processor;
- and
- a memory coupled to the processor, storing processor-readable instructions which when executed causes the processor to implement operations including:
- determining that user equipment is to send first uplink control information on a first physical uplink control channel (PUCCH) and in a subframe i, wherein the first uplink control information comprises channel state information (CSI), a hybrid automatic repeat request-acknowledgment (HARQ-ACK), and/or a scheduling request (SR);
- determining transmit power for sending the first uplink control information on the first PUCCH and in the subframe i, wherein the transmit power is a sum of a base power adjustment value and any one of a first power adjustment value, a second power adjustment value, a third power adjustment value, a fourth power adjustment value, or a fifth power adjustment value;
- and
- receiving the first uplink control information that is sent by the user equipment on the first PUCCH by using power that is not greater than the transmit power, wherein
- (a) the first power adjustment value is a power adjustment value determined by the user equipment according to a quantity of bits of the first uplink control information,
- (b) the second power adjustment value is a power adjustment value determined by the user equipment according to the quantity of the bits of the first uplink control information and a quantity of resources of the first PUCCH,
- (c) the third power adjustment value is a power adjustment value determined by the user equipment according to the quantity of the resources of the first PUCCH and a ratio of the quantity of the bits of the first uplink control information to the quantity of the resources of the first PUCCH,
- (d) the fourth power adjustment value is a power adjustment value determined by the user equipment according to the quantity of the resources of the first PUCCH, and
- (e) the fifth power adjustment value is a power adjustment value determined by the user equipment according to the quantity of the resources of the first PUCCH and a ratio of a quantity of bits of second uplink control information to a quantity of resources occupied on the first PUCCH by the second uplink control information, or the fifth power adjustment value is a power adjustment value determined by the user equipment according to the quantity of the resources of the first PUCCH and a ratio of a quantity of bits of the second uplink control information to the quantity of the resources of the first PUCCH, wherein the second uplink control information is a subset of the first uplink control information;
- and
- the base power adjustment value comprises a sum of PO_PUCCH and PLc, or the base power adjustment value comprises a sum of PO_PUCCH and αc·PLc, wherein
- PO_PUCCH is a value configured for the user equipment by the network device using higher layer signaling;
- PLc is a path loss that is determined by the user equipment and that is of a downlink of a cell c in which the first PUCCH is located;
- and
- αc is a path loss factor that is configured for the user equipment by the network device and that is of the cell c in which the first PUCCH is located.
15 more elements
Dependencies are inferred from the claim text.