US2020106569A1PendingUtilityA1

Mechanisms for postponing hybrid automatic repeat request acknowledgement (harq-ack) feedback

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Assignee: MEDIATEK INCPriority: Sep 27, 2018Filed: Sep 23, 2019Published: Apr 2, 2020
Est. expirySep 27, 2038(~12.2 yrs left)· nominal 20-yr term from priority
Inventors:Cheng-Rung TsaiChun-Hsuan Kuo
H04L 1/1896H04L 1/1812H04L 1/1854H04L 1/1861H04L 5/0055H04L 1/1887H04W 72/23
56
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Claims

Abstract

A method for postponing a hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback is described. The method can include receiving a downlink control information (DCI) associated with a downlink transmission at a user equipment (UE) from a base station (BS) in a wireless communication system. The DCI can include a HARQ-ACK feedback timing indicator field having a field value indicating that a HARQ-ACK feedback of the downlink transmission is postponed. When a timing and resource for the HARQ-ACK feedback of the downlink transmission is received later, the HARQ-ACK feedback of the downlink transmission is transmitted from the UE to the BS over a HARQ-ACK transmission opportunity (TxOP) with the timing and resource later received.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A method, comprising:
 receiving a downlink control information (DCI) associated with a downlink transmission at a user equipment (UE) from a base station (BS) in a wireless communication system, the DCI including a hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback timing indicator field having a field value indicating that a HARQ-ACK feedback of the downlink transmission is postponed; and   when a timing and resource for the HARQ-ACK feedback of the downlink transmission is received later, transmitting from the UE to the BS the HARQ-ACK feedback of the downlink transmission over a HARQ-ACK transmission opportunity (TxOP) with the timing and resource later received.   
     
     
         2 . The method of  claim 1 , wherein that the HARQ-ACK feedback of the downlink transmission is postponed includes:
 the timing and resource for the HARQ-ACK feedback of the downlink transmission is to be provided later or not provided.   
     
     
         3 . The method of  claim 1 , further comprising:
 receiving a configuration specifying that the field value indicates that the HARQ-ACK feedback of the downlink transmission is postponed.   
     
     
         4 . The method of  claim 1 , further comprising:
 receiving a configuration that associates the field value with a value indicating that the HARQ-ACK feedback of the downlink transmission is postponed.   
     
     
         5 . The method of  claim 1 , wherein the field value is predefined to indicate that the HARQ-ACK feedback of the downlink transmission is postponed. 
     
     
         6 . The method of  claim 1 , further comprising:
 generating HARQ-ACK information for the HARQ-ACK feedback of the downlink transmission.   
     
     
         7 . The method of  claim 6 , further comprising:
 storing the HARQ-ACK information until the timing and resource for the HARQ-ACK feedback of the downlink transmission is received later.   
     
     
         8 . A method, comprising:
 transmitting a downlink control information (DCI) associated with a downlink transmission to a user equipment (UE) from a base station (BS) in a wireless communication system, the DCI including a hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback timing indicator field having a field value indicating that a HARQ-ACK feedback of the downlink transmission is postponed; and   receiving from the UE the HARQ feedback of the downlink transmission over a HARQ-ACK transmission opportunity (TxOP) with a timing and resource later provided.   
     
     
         9 . The method of  claim 8 , wherein that the HARQ-ACK feedback of the downlink transmission is postponed includes:
 the timing and resource for the HARQ-ACK feedback of the downlink transmission is to be provided later or not provided.   
     
     
         10 . The method of  claim 8 , further comprising:
 transmitting a configuration specifying that the field value indicates that the HARQ-ACK feedback of the downlink transmission is postponed.   
     
     
         11 . The method of  claim 8 , further comprising:
 transmitting a configuration that associates the field value with a value indicating that the HARQ-ACK feedback of the downlink transmission is postponed.   
     
     
         12 . The method of  claim 8 , wherein the field value is predefined to indicate that the HARQ-ACK feedback of the downlink transmission is postponed. 
     
     
         13 . The method of  claim 8 , further comprising:
 transmitting information of the timing and resource for the HARQ-ACK feedback of the downlink transmission.   
     
     
         14 . A user equipment (UE), comprising circuitry configured to:
 receive a downlink control information (DCI) associated with a downlink transmission from a base station (BS) in a wireless communication system, the DCI including a hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback timing indicator field having a field value indicating that a HARQ-ACK feedback of the downlink transmission is postponed; and   when a timing and resource for the HARQ-ACK feedback of the downlink transmission is received later, transmit to the BS the HARQ-ACK feedback of the downlink transmission over a HARQ-ACK transmission opportunity (TxOP) with the timing and resource later received.   
     
     
         15 . The UE of  claim 14 , wherein that the HARQ-ACK feedback of the downlink transmission is postponed includes:
 the timing and resource for the HARQ-ACK feedback of the downlink transmission is to be provided later or not provided.   
     
     
         16 . The UE of  claim 14 , wherein the circuitry is further configured to:
 receive a configuration specifying that the field value indicates that the HARQ-ACK feedback of the downlink transmission is postponed.   
     
     
         17 . The UE of  claim 14 , wherein the circuitry is further configured to:
 receive a configuration that associates the field value with a value indicating that the HARQ-ACK feedback of the downlink transmission is postponed.   
     
     
         18 . The UE of  claim 14 , wherein the field value is predefined to indicate that the HARQ-ACK feedback of the downlink transmission is postponed. 
     
     
         19 . The UE of  claim 14 , wherein the circuitry is further configured to:
 generate HARQ-ACK information for the HARQ-ACK feedback of the downlink transmission.   
     
     
         20 . The method of  claim 19 , further comprising:
 store the HARQ-ACK information until the timing and resource for the HARQ-ACK feedback of the downlink transmission is received later.

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