Method and device for grant-free data transmission in wireless communication system
A communication technique and a system thereof for converging an Internet of Things (IoT) technology and a 5th generation (5G) communication system for supporting a high data transmission rate beyond that of a 4th generation (4G) system are provided. The disclosure may be applied to intelligent services, such as smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail, and security and safety related services, on the basis of 5G communication technologies and IoT-related technologies. The disclosure provides a method and device for transmitting or receiving a plurality of dynamic scheduling-based and/or grant-free based data, and reporting feedback information relating to the plurality of data, in a wireless communication system.
1 . A method performed by a terminal in a communication system, the method comprising:
receiving, from a base station, first downlink control information (DCI) scheduling a first physical downlink shared channel (PDSCH) for a unicast, wherein a format of the first DCI is a first DCI format for the unicast;
receiving, from the base station, second DCI scheduling a second PDSCH for a multicast, wherein a format of the second DCI is a second DCI format for the multicast;
receiving, from the base station, the first PDSCH for the unicast and the second PDSCH for the multicast, wherein the first PDSCH for the unicast and the second PDSCH for the multicast overlap each other in at least one symbol and are located in non-overlapping frequency resources, respectively;
identifying a first semi-static hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook for the first PDSCH for the unicast and a second semi-static HARQ-ACK codebook for the second PDSCH for the multicast;
concatenating the first semi-static HARQ-ACK codebook followed by the second semi-static HARQ-ACK codebook to obtain a semi-static HARQ-ACK codebook; and
transmitting, to the base station, the semi-static HARQ-ACK codebook.
2 . The method of claim 1 ,
wherein a first set of time domain allocation information for the first PDSCH and a second set of time domain allocation information for the second PDSCH are configured via higher layer signaling.
3 . The method of claim 1 ,
wherein a radio network temporary identifier (RNTI) for the second DCI corresponds to an RNTI for the multicast.
4 . The method of claim 1 , further comprising:
transmitting, to the base station, capability information indicating a capability of receiving frequency division multiplexed (FDMed) PDSCHs.
5 . A method performed by a base station in a communication system, the method comprising:
transmitting, to a terminal, first downlink control information (DCI) scheduling a first physical downlink shared channel (PDSCH) for a unicast, wherein a format of the first DCI is a first DCI format for the unicast;
transmitting, to the terminal, second DCI scheduling a second PDSCH for a multicast, wherein a format of the second DCI is a second DCI format for the multicast;
transmitting, to the terminal, the first PDSCH for the unicast and the second PDSCH for the multicast, wherein the first PDSCH for the unicast and the second PDSCH for the multicast overlap each other in at least one symbol and are located in non-overlapping frequency resources, respectively; and
receiving, from the terminal, a semi-static hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook,
wherein the semi-static HARQ-ACK codebook includes a first semi-static HARQ-ACK codebook for the first PDSCH for the unicast followed by a second semi-static HARQ-ACK codebook for the second PDSCH for the multicast.
6 . The method of claim 5 ,
wherein configurations on a first set of time domain allocation information for the first PDSCH and a second set of time domain allocation information for the second PDSCH are transmitted via higher layer signaling.
7 . The method of claim 5 ,
wherein a radio network temporary identifier (RNTI) for the second DCI corresponds to an RNTI for the multicast.
8 . The method of claim 5 , further comprising:
receiving, from the terminal, capability information indicating a capability of receiving frequency division multiplexed (FDMed) PDSCHs.
9 . A terminal in a communication system, the terminal comprising:
a transceiver; and
a controller coupled with the transceiver and configured to:
receive, from a base station, first downlink control information (DCI) scheduling a first physical downlink shared channel (PDSCH) for a unicast, wherein a format of the first DCI is a first DCI format for the unicast,
receive, from the base station, second DCI scheduling a second PDSCH for a multicast, wherein a format of the second DCI is a second DCI format for the multicast,
receive, from the base station, the first PDSCH for the unicast and the second PDSCH for the multicast, wherein the first PDSCH for the unicast and the second PDSCH for the multicast overlap each other in at least one symbol and are located in non-overlapping frequency resources, respectively,
identify a first semi-static hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook for the first PDSCH for the unicast and a second semi-static HARQ-ACK codebook for the second PDSCH for the multicast,
concatenate the first semi-static HARQ-ACK codebook followed by the second semi-static HARQ-ACK codebook to obtain a semi-static HARQ-ACK codebook, and
transmit, to the base station, the semi-static HARQ-ACK codebook.
10 . The terminal of claim 9 ,
wherein a first set of time domain allocation information for the first PDSCH and a second set of time domain allocation information for the second PDSCH are configured via higher layer signaling.
11 . The terminal of claim 9 ,
wherein a radio network temporary identifier (RNTI) for the second DCI corresponds to an RNTI for the multicast.
12 . The terminal of claim 9 ,
wherein the controller is further configured to transmit, to the base station, capability information indicating a capability of receiving frequency division multiplexed (FDMed) PDSCHs.
13 . A base station in a communication system, the base station comprising:
a transceiver; and
a controller coupled with the transceiver and configured to:
transmit, to a terminal, first downlink control information (DCI) scheduling a first physical downlink shared channel (PDSCH) for a unicast, wherein a format of the first DCI is a first DCI format for the unicast,
transmit, to the terminal, second DCI scheduling a second PDSCH for a multicast, wherein a format of the second DCI is a second DCI format for the multicast,
transmit, to the terminal, the first PDSCH for the unicast and the second PDSCH for the multicast, wherein the first PDSCH for the unicast and the second PDSCH for the multicast overlap each other in at least one symbol and are located in non-overlapping frequency resources, respectively, and
receive, from the terminal, a semi-static hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook,
wherein the semi-static HARQ-ACK codebook includes a first semi-static HARQ-ACK codebook for the first PDSCH for the unicast followed by a second semi-static HARQ-ACK codebook for the second PDSCH for the multicast.
14 . The base station of claim 13 ,
wherein configurations on a first set of time domain allocation information for the first PDSCH and a second set of time domain allocation information for the second PDSCH are transmitted via higher layer signaling.
15 . The base station of claim 13 ,
wherein a radio network temporary identifier (RNTI) for the second DCI corresponds to an RNTI for the multicast.
16 . The base station of claim 13 ,
wherein the controller is further configured to receive, from the terminal, capability information indicating a capability of receiving frequency division multiplexed (FDMed) PDSCHs.