Method and devices for selecting time-frequency resources for control feedback
Disclosure provides a method and device in a node for wireless communications. A first receiver, receives a first signaling; and a first transmitter, transmits a first signal in a target time-frequency-resource block, and the first signal carries a second bit block; herein, the first signaling is used to determine a first bit block; the first bit block comprises a second-type HARQ-ACK; the first bit block is used to generate the second bit block; the first time-frequency-resource block and the second time-frequency-resource block are respectively reserved for different bit blocks; a number of resources used to transmit a first-type HARQ-ACK in the first time-frequency-resource block is used to determine whether the target time-frequency-resource block is the first time-frequency-resource block or the second time-frequency-resource block; the first-type HARQ-ACK corresponds to a first index; the second-type HARQ-ACK corresponds to a second index; the first signaling indicates the second index.
1 . A user equipment (UE) for wireless communications, comprising:
a transceiver; and
a processor;
wherein the transceiver and the processor are configured to:
transmit, in a first time-frequency-resource block, a first-type Hybrid Automatic Repeat reQuest Acknowledgement (HARQ-ACK) corresponding to a first index;
receive a first control signaling indicating a second index associated with a second-type HARQ-ACK; and
transmit, in a target time-frequency-resource block, a second-type HARQ-ACK corresponding to the second index;
wherein a number of resources used to transmit the first-type HARQ-ACK in the first time-frequency-resource block is used to determine whether the target time-frequency-resource block is the first time-frequency-resource block or a second time-frequency-resource block.
2 . The UE of claim 1 , wherein the first control signaling is a Downlink Control Information (DCI) signaling.
3 . The UE of claim 1 , wherein the first control signaling is a Radio Resource Control (RRC) layer signaling.
4 . The UE of claim 1 , wherein the first time-frequency-resource block belongs to a first serving cell and the target time-frequency-resource block belongs to a second serving cell, and a serving cell identity (ID) corresponding to the first serving cell is less than a serving cell ID corresponding to the second serving cell.
5 . The UE of claim 1 , wherein the first time-frequency-resource block includes a first PUSCH and the second time-frequency-resource block includes a second Physical Uplink Shared Channel (PUSCH).
6 . The UE of claim 1 , wherein:
on a condition that the number of resources used to transmit the first-type HARQ-ACK in the first time-frequency-resource block is equal to zero, the target time-frequency-resource block is the first time-frequency-resource block; and
on a condition that the number of resources used to transmit the first-type HARQ-ACK in the first time-frequency-resource block is greater than zero, the target time-frequency-resource block is the second time-frequency-resource block.
7 . The UE of claim 1 , wherein a radio resource block is reserved for transmission of the first-type HARQ-ACK, wherein the first control signaling is used to determine the radio resource block, and wherein the radio resource block overlaps, in time domain, with both the first time-frequency-resource block and the second time-frequency-resource block on at least one multi-carrier symbol.
8 . The UE of claim 1 , wherein the transceiver is further configured to receive a second control signaling, and wherein the target time-frequency-resource block is reserved for transmission of a second-type HARQ-ACK based on the second control signaling.
9 . The UE of claim 1 , wherein the first index is different from the second index.
10 . The UE of claim 1 , wherein the first index and the second index are priority indexes.
11 . A method performed by a user equipment (UE) for wireless communications, the method comprising:
transmitting, in a first time-frequency-resource block, a first-type Hybrid Automatic Repeat reQuest Acknowledgement (HARQ-ACK) corresponding to a first index;
receiving a first control signaling indicating a second index associated with a second- type HARQ-ACK; and
transmitting, in a target time-frequency-resource block, a second-type HARQ-ACK corresponding to the second index;
wherein a number of resources used to transmit the first-type HARQ-ACK in the first time-frequency-resource block is used to determine whether the target time-frequency-resource block is the first time-frequency-resource block or a second time-frequency-resource block.
12 . The method of claim 11 , wherein the first control signaling is a Downlink Control Information (DCI) signaling.
13 . The method of claim 11 , wherein the first control signaling is a Radio Resource Control (RRC) layer signaling.
14 . The method of claim 11 , wherein the first time-frequency-resource block belongs to a first serving cell and the target time-frequency-resource block belongs to a second serving cell, and a serving cell identity (ID) corresponding to the first serving cell is less than a serving cell ID corresponding to the second serving cell.
15 . The method of claim 11 , wherein the first time-frequency-resource block includes a first Physical Uplink Shared Channel (PUSCH) and the second time-frequency-resource block includes a second PUSCH.
16 . The method of claim 11 , wherein:
on a condition that the number of resources used to transmit the first-type HARQ-ACK in the first time-frequency-resource block is equal to zero, the target time-frequency-resource block is the first time-frequency-resource block; and
on a condition that the number of resources used to transmit the first-type HARQ-ACK in the first time-frequency-resource block is greater than zero, the target time-frequency-resource block is the second time-frequency-resource block.
17 . The method of claim 11 , wherein a radio resource block is reserved for transmission of the first-type HARQ-ACK, wherein the first control signaling is used to determine the radio resource block, and wherein the radio resource block overlaps, in time domain, with both the first time-frequency-resource block and the second time-frequency-resource block on at least one multi-carrier symbol.
18 . The method of claim 11 , further comprising:
receiving a second control signaling, and wherein the target time-frequency-resource block is reserved for transmission of a second-type HARQ-ACK based on the second control signaling.
19 . The method of claim 11 , wherein the first index is different from the second index.
20 . The method of claim 11 , wherein the first index and the second index are priority indexes.