Device and method for identifying polarization for uplink transmission in wireless communication system

1 . An electronic device in a wireless communication system, the electronic device comprising:

a communication circuit;

at least one processor electrically connected with the communication circuit; and

memory storing instructions that, when executed by the at least one processor individually or collectively, cause the electronic device to:

receive, from a base station, downlink control information (DCI) for an uplink signal,

identify whether the DCI includes transmitted precoding matrix indicator (TPMI) information for indicating a polarization of the uplink signal,

in case that the DCI does not include the TPMI information;

identify the polarization of the uplink signal, based on a combination of parameters associated with the uplink signal, and

transmit, to the base station, the uplink signal having the polarization identified based on the combination of the parameters;

wherein the combination of the parameters comprises two or more of a location of an antenna module for transmitting the uplink signal, a frequency band of the uplink signal, or a channel used for transmitting the uplink signal.

2 . The electronic device of claim 1 , wherein the uplink signal is transmitted based on a beam corresponding to the polarization indicated by the combination of the parameters associated with the uplink signal.

3 . The electronic device of claim 1 , wherein the polarization of the uplink signal is identified from a pre-configured table, and

wherein the pre-configured table is configured with locations of one or more antenna modules in the electronic device, one or more operating bands, or one or more channels.

4 . The electronic device of claim 3 , wherein the pre-configured table indicates a polarization having a maximum effective isotropic radiated power (EIRP) among two polarizations for each combination of the parameters, and

wherein an EIRP is determined based on a cumulative distribution function (CDF) configuration.

5 . The electronic device of claim 1 , wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to:

identify a DCI format, based on a number of bits included in the DCI and a DCI format indicator included in the DCI.

6 . The electronic device of claim 5 , wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to:

identify that the DCI does not include the TPMI information, in case that the DCI format is 0_0.

7 . The electronic device of claim 5 , wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to:

receive configuration information on a physical uplink shared channel (PUSCH) through a radio resource control (RRC) message, and

identify that the DCI does not include the TPMI information, in case that a field on uplink configuration, which is included in the configuration information on the PUSCH, indicates non-codebook-based transmission or is emptied.

8 . The electronic device of claim 1 , wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to:

receive a synchronization signal from the base station;

identify a first polarization for transmitting a preamble signal, based on a pre-configured table; and

transmit the preamble signal to the base station based on the identified first polarization.

9 . The electronic device of claim 8 , wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to:

receive a random access response (RAR) from the base station;

identify a first polarization for transmitting a message 3 based on the pre-configured table; and

transmit the message 3 to the base station based on the identified first polarization.

10 . The electronic device of claim 1 , wherein the polarization is a vertical polarization or a horizontal polarization.

11 . A method performed by an electronic device in a wireless communication system, the method comprising:

receiving, from a base station, downlink control information (DCI) for an uplink signal;

identifying whether the DCI includes transmitted precoding matrix indicator (TPMI) information for indicating a polarization of the uplink signal;

in case that the DCI does not include the TPMI information:

identifying the polarization of the uplink signal, based on a combination of parameters associated with the uplink signal; and

transmitting, to the base station, the uplink signal having the polarization identified based on the combination of the parameters,

wherein the combination of the parameters comprises two or more of a location of an antenna module for transmitting the uplink signal, a frequency band of the uplink signal, and a channel used for transmitting the uplink signal.

12 . The method of claim 11 , wherein the uplink signal is transmitted based on a beam corresponding to the polarization indicated by the combination of the parameters associated with the uplink signal.

13 . The method of claim 11 , wherein the polarization of the uplink signal is identified from a pre-configured table, and

wherein the pre-configured table is configured with locations of one or more antenna modules in the electronic device, one or more operating bands, or one or more channels.

14 . The method of claim 13 , wherein the pre-configured table indicates a polarization having a maximum effective isotropic radiated power (EIRP) among two polarizations for each combination of the parameters, and

wherein an EIRP is determined based on a cumulative distribution function (CDF) configuration.

15 . The method of claim 11 , further comprising:

identifying a DCI format, based on a number of bits included in the DCI and a DCI format indicator included in the DCI.

16 . The method of claim 15 , further comprising:

identifying that the DCI does not include the TPMI information, in case that the DCI format is 0_0.

17 . The method of claim 15 , further comprising:

receiving configuration information on a physical uplink shared channel (PUSCH) through a radio resource control (RRC) message, and

identifying that the DCI does not include the TPMI information, in case that a field on uplink configuration, which is included in the configuration information on the PUSCH, indicates non-codebook-based transmission or is emptied.

18 . The method of claim 11 , further comprising:

receiving a synchronization signal from the base station;

identifying a first polarization for transmitting a preamble signal, based on a pre-configured table; and

transmitting the preamble signal to the base station based on the identified first polarization.

19 . The method of claim 18 , further comprising:

receiving a random access response (RAR) from the base station;

identifying a first polarization for transmitting a message 3 based on the pre-configured table; and

transmitting the message 3 to the base station based on the identified first polarization.

20 . The method of claim 11 , wherein the polarization is a vertical polarization or a horizontal polarization.