Transmitting feedback information
Apparatuses, methods, and systems are disclosed for supporting acknowledgements for DL data transmitted on UL resources. One apparatus in a mobile communication network includes a processor and a transceiver that receives signaling information from a RAN node to schedule a first set of PDSCH resources and a first set of corresponding PUSCH resources, where the information to schedule the first set of PDSCH resources and the first set of PUSCH resources is transmitted in a same slot. The processor determines feedback information for a PDSCH transmission received from the RAN node using the first set of PDSCH resources and controls the transceiver to send feedback information for the PDSCH transmission to the RAN node using the first set of PUSCH resources.
1 . A User Equipment (“UE”) comprising:
at least one memory; and
at least one processor coupled with the at least one memory and configured to cause the UE to:
receive signaling information from a Radio Access Network (“RAN”) device to schedule a first set of Physical Downlink Shared Channel (“PDSCH”) resources and a first set of corresponding Physical Uplink Shared Channel (“PUSCH”) resources, wherein the signaling information to schedule the first set of PDSCH resources and the first set of PUSCH resources is received in a same slot;
determine feedback information for a PDSCH transmission received from the RAN device using the first set of PDSCH resources;
determine a PUSCH resource from the first set of corresponding PUSCH resources for transmitting the feedback information, wherein the PUSCH resource for transmitting the feedback information comprises an earliest transmit time interval (“TTI”) occurring after a TTI of the PDSCH transmission; and
transmit the feedback information for the PDSCH transmission to the RAN device using the PUSCH resource of the first set of PUSCH resources.
2 . The UE of claim 1 , wherein the signaling information comprises a unified Downlink Control Information (“DCI”) format comprising both a downlink resource assignment indicating the first set of PDSCH resources and an uplink grant indicating the first set of PUSCH resources.
3 . The UE of claim 1 , wherein the signaling information comprises a first Downlink Control Information (“DCI”) comprising a downlink resource assignment indicating the first set of PDSCH resources and a second DCI comprising an uplink grant indicating the first set of PUSCH resources.
4 . The UE of claim 3 , wherein the at least one processor is configured to cause the UE to ignore a PDSCH-to-HARQ feedback timing indicator field in the first DCI.
5 . The UE of claim 1 , wherein the first set of PUSCH resources comprises PUSCH resources using different subcarrier spacing (“SCS”) values, wherein the feedback information is sent using PUSCH resources using a smallest SCS value.
6 . The UE of claim 1 , wherein the feedback information comprises Hybrid Automatic Repeat Request Acknowledgement (“HARQ-ACK”) information, and wherein the PUSCH resource for transmitting the HARQ-ACK information comprises a first transmission resource occurring after the PDSCH transmission.
7 . The UE of claim 1 , wherein the feedback information comprises Hybrid Automatic Repeat Request Acknowledgement (“HARQ-ACK”) information, and wherein the PUSCH resource is at least a pre-determined offset of symbols after the PDSCH transmission.
8 . The UE of claim 1 , wherein the at least one processor is configured to cause the UE to aggregate Hybrid Automatic Repeat Request Acknowledgement (“HARQ-ACK”) information for multiple data blocks transmitted in the first set of PDSCH resources into aggregated HARQ-ACK information, wherein feedback information sent using the first set of PUSCH resources comprises the aggregated HARQ-ACK information.
9 . The UE of claim 1 , wherein a first priority is assigned to a PUSCH data transmission, and a second priority is assigned to a Hybrid Automatic Repeat Request Acknowledgement (“HARQ-ACK”) transmission, wherein to transmit feedback for the PDSCH transmission using the first set of PUSCH resources, the at least one processor is configured to cause the UE to multiplex uplink data and the feedback information in response to the first priority being the same as the second priority.
10 . A method of a User Equipment (“UE”), the method comprising:
receiving first signaling information from a Radio Access Network (“RAN”) device to schedule a first set of Physical Downlink Shared Channel (“PDSCH”) resources and a first set of corresponding Physical Uplink Shared Channel (“PUSCH”) resources, wherein the information to schedule the first set of PDSCH resources and the first set of PUSCH resources is received in a same slot;
determining feedback information for a PDSCH transmission received using the first set of PDSCH resources;
determining a PUSCH resource from the first set of corresponding PUSCH resources for transmitting the feedback information, wherein the PUSCH resource for transmitting the feedback information comprises an earliest transmit time interval (“TTI”) occurring after a TTI of the PDSCH transmission; and
transmitting the feedback information for the PDSCH transmission using the PUSCH resource of the first set of PUSCH resources.
11 . A base station for wireless communication, comprising:
at least one memory; and
at least one processor coupled with the at least one memory and configured to cause the base station to:
transmit first signaling information to a User Equipment device (“UE”) to schedule a first set of Physical Downlink Shared Channel (“PDSCH”) resources and a first set of corresponding Physical Uplink Shared Channel (“PUSCH”) resources, wherein the information to schedule the first set of PDSCH resources and the first set of PUSCH resources is transmitted in a same slot;
transmit a PDSCH transmission to the UE using the first set of PDSCH resources; and
receive feedback information from the UE for the PDSCH transmission using a PUSCH resource of the corresponding first set of PUSCH resources, wherein the PUSCH resource comprises an earliest transmit time interval (“TTI”) occurring after a TTI of the PDSCH transmission.
12 . The base station of claim 11 , wherein the signaling information comprises a unified Downlink Control Information (“DCI”) format comprising both a downlink resource assignment indicating the first set of PDSCH resources and an uplink grant indicating the first set of PUSCH resources.
13 . The base station of claim 11 , wherein the signaling information comprises a first Downlink Control Information (“DCI”) comprising a downlink resource assignment indicating the first set of PDSCH resources and a second DCI comprising an uplink grant indicating the first set of PUSCH resources.
14 . The base station of claim 13 , wherein the base station expects to receive the feedback information in the first set of corresponding PUSCH resources.
15 . The base station of claim 11 , wherein the feedback information comprises Hybrid Automatic Repeat Request Acknowledgement (“HARQ-ACK”) information, and wherein the PUSCH resource carrying the HARQ-ACK information is at least a pre-determined offset of symbols after the PDSCH transmission.
16 . The base station of claim 11 , wherein feedback information received in the first set of PUSCH resources comprises aggregated Hybrid Automatic Repeat Request Acknowledgement (“HARQ-ACK”) information for multiple data blocks transmitted in the first set of PDSCH resources.
17 . The base station of claim 16 , wherein feedback information sent using the first set of PUSCH resources comprises the aggregated HARQ-ACK information.
18 . The base station of claim 11 , wherein the feedback information comprises Hybrid Automatic Repeat Request Acknowledgement (“HARQ-ACK”) information, wherein the PUSCH resource comprising the HARQ-ACK information comprises a first transmission resource occurring after the PDSCH transmission.
19 . The base station of claim 11 , wherein the first set of PUSCH resources comprises PUSCH resources using different subcarrier spacing (“SCS”) values, wherein the feedback information is sent using PUSCH resources using a smallest SCS value.
20 . The base station of claim 11 , wherein a first priority is assigned to a PUSCH data transmission, and a second priority is assigned to a Hybrid Automatic Repeat Request Acknowledgement (“HARQ-ACK”) transmission, wherein the PUSCH data transmission comprises uplink data multiplexed with the feedback information in response to the first priority being the same as the second priority.