Method and device for repetitively transmitting uplink channel in wireless communication system
An operating method of a terminal in a wireless communication system may include receiving, from a base station, configuration information for repetitive transmissions of uplink data, based on the configuration information, determining a redundancy value (RV) value of the uplink data, and transmitting the uplink data based on the RV value, wherein the determining of the RV value may include determining the RV value by comparing a number of symbols configured by the base station with a number of symbols used for the repetitive transmissions of the uplink data.
1. An operating method of a terminal in a wireless communication system, the operating method comprising:
receiving, from a base station, configuration information for repetitive transmissions of uplink data;
determining a value of N start as one of transmission indexes for the repetitive transmissions of the uplink data by comparing a number of orthogonal frequency division multiplexing (OFDM) symbols of the uplink data with a number of OFDM symbols configured by the base station, based on the configuration information;
determining a redundancy version (RV), among RVs in a RV sequence, based on mod(n−N start , N length )+1, wherein the N length is a length of the RV sequence; and
transmitting the uplink data based on the determined RV.
2. The operating method of claim 1 , wherein the N start is determined as a transmission index, among the transmission indexes, in which the number of OFDM symbols configured by the base station is first equal to the number of OFDM symbols of the uplink data.
3. The operating method of claim 2 , wherein, in case that there is no transmission index in which the number of OFDM symbols configured by the base station is equal to the number of OFDM symbols of the uplink data, the N start is configured to 1.
4. The operating method of claim 2 , wherein, in case that there is no transmission index in which the number of OFDM symbols configured by the base station is equal to the number of OFDM symbols of the uplink data, all RV values of the uplink data are configured to 0.
5. The operating method of claim 1 ,
wherein the N start is determined as a transmission index, among the transmission indexes, in which the number of OFDM symbols of the uplink data is first greater than or equal to 1/m of the number of OFDM symbols configured by the base station, and
wherein the m is one of numbers from 1 to 14 configured by RRC signaling or configured by DCI.
6. The operating method of claim 5 , wherein in case that there is no transmission index in which the number of OFDM symbols of the uplink data is greater than or equal to 1/m of the number of OFDM symbols configured by the base station, all RV values of the uplink data are configured to 0.
7. A terminal in a wireless communication system, the terminal comprising:
a transceiver; and
at least one processor, coupled with the transceiver and configured to:
receive, from a base station, configuration information for repetitive transmissions of uplink data,
determine a value of N start as one of transmission indexes for the repetitive transmissions of the uplink data by comparing a number of orthogonal frequency division multiplexing (OFDM) symbols of the uplink data with a number of OFDM symbols configured by the base station, based on the configuration information,
determine a redundancy version (RV), among RVs in a RV sequence, based on mod(n−N start , N length )+1, wherein the N length is a length of the RV sequence, and
transmit the uplink data based on the determined RV.
8. The terminal of claim 7 , wherein the N start is determined as a transmission index, among the transmission indexes, in which the number of OFDM symbols configured by the base station is first equal to the number of OFDM symbols of the uplink data.
9. The terminal of claim 8 , wherein, in case that there is no transmission index in which the number of OFDM symbols configured by the base station is equal to the number of OFDM symbols of the uplink data, the N start is configured to 1.
10. The terminal of claim 8 , wherein, in case that there is no transmission index in which the number of OFDM symbols configured by the base station is equal to the number of OFDM symbols of the uplink data, all RV values of the uplink data are configured to 0.
11. The terminal of claim 7 ,
wherein the N start is determined as a transmission index, among the transmission indexes, in which the number of OFDM symbols of the uplink data is first greater than or equal to 1/m of the number of OFDM symbols configured by the base station, and
wherein the m is one of numbers from 1 to 14 configured by RRC signaling or configured by DCI.
12. The terminal of claim 11 , wherein, in case that there is no transmission index in which the number of OFDM symbols of the uplink data is greater than or equal to 1/m of the number of OFDM symbols configured by the base station, all RV values of the uplink data are configured to 0.
13. An operating method of a base station in a wireless communication system, the operating method comprising:
transmitting, to a terminal, configuration information for repetitive transmissions of uplink data; and
receiving the uplink data based on a redundancy version (RV), among RVs in a RV sequence,
wherein the RV is determined based on mod(n−N start , N length )+1,
wherein the N length is a length of the RV sequence, and
wherein a value of the N start is determined as one of transmission indexes for the repetitive transmissions of the uplink data by comparing a number of orthogonal frequency division multiplexing (OFDM) symbols of the uplink data with a number of OFDM symbols configured by the base station, based on the configuration information.
14. A base station in a wireless communication system, the base station comprising:
a transceiver; and
at least one processor coupled with the transceiver and configured to:
transmit, to a terminal, configuration information for repetitive transmissions of uplink data, and
receive the uplink data based on a redundancy version (RV), among RVs in a RV sequence,
wherein the RV is determined based on mod(n−N start ,N length )+1,
wherein the N length is a length of the RV sequence, and
wherein a value of the N start is determined as one of transmission indexes for the repetitive transmissions of the uplink data by comparing a number of orthogonal frequency division multiplexing (OFDM) symbols of the uplink data with a number of OFDM symbols configured by the base station, based on the configuration information.