Method, device and computer storage medium of communication
AssigneeNEC Corporation
InventorsGang Wang, Lin Liang
Life of this patent
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Abstract
Embodiments of the present disclosure relate to methods, devices and computer readable media for communication. A terminal device determines a target cell from a set of cells, the set of cells being configured for uplink control transmissions for HARQ feedbacks for downlink data transmissions received on cells in a cell group, and transmits, on the target cell and to a network device, an uplink control transmission for a HARQ feedback for a downlink data transmission received on one of the cells in the cell group. In this way, a latency for HARQ feedback can be reduced.
Claims9
A method performed by a terminal device, comprising:
- receiving, from a network device, a first physical uplink control channel (PUCCH) power control configuration of a primary cell and a second PUCCH power control configuration of a secondary cell configured for PUCCH cell switching, wherein a cell group comprises the primary cell and the secondary cell;
- receiving, from the network device, an indication indicating that the secondary cell is used for PUCCH transmission, wherein the indication is based on at least one of a first downlink control information (DCI) and a higher layer configuration;
- determining a PUCCH transmission power based on the second PUCCH power control configuration of the secondary cell and a transmit power control (TPC) command value indicated in the first DCI;
- and
- transmitting, to the network device, a hybrid automatic repeat request (HARQ) feedback, wherein the HARQ feedback is transmitted on the secondary cell with the PUCCH transmission power.
A terminal device, comprising:
- processor configured to cause to terminal device to:
- receive, from a network device, a first physical uplink control channel (PUCCH) power control configuration of a primary cell and a second PUCCH power control configuration of a secondary cell configured for PUCCH cell switching, wherein a cell group comprises the primary cell and the secondary cell;
- receive, from the network device, an indication indicating that the secondary cell is used for PUCCH transmission, wherein the indication is based on at least one of a first downlink control information (DCI) and a higher layer configuration;
- determine a PUCCH transmission power based on the second PUCCH power control configuration of the secondary cell and a transmit power control (TPC) command value indicated in the first DCI;
- and
- transmitting, to the network device, a hybrid automatic repeat request (HARQ) feedback, wherein the HARQ feedback is transmitted on the secondary cell with the PUCCH transmission power.
A method performed by a network device, comprising:
- transmitting to a terminal device a first physical uplink control channel (PUCCH) power control configuration of a primary cell and a second PUCCH power control configuration of a secondary cell configured for PUCCH cell switching, wherein a cell group comprises the primary cell and the secondary cell;
- transmitting, to the terminal device, an indication indicating that the secondary cell is used for PUCCH transmission, wherein the indication is based on at least one of a first downlink control information (DCI) and a higher layer configuration;
- and
- receiving, from the terminal device, a hybrid automatic repeat request (HARQ) feedback, wherein the HARQ feedback is transmitted on the secondary cell with a PUCCH transmission power determined based on the second PUCCH power control configuration of the secondary cell and a transmit power control (TPC) command value indicated in the first DCI.
Dependencies are inferred from the claim text.