Apparatus and method of wireless communication

A wireless communication method, by a base station comprising:

• performing communication, by the base station with a user equipment (UE), wherein the communication comprises that the base station is configured to transmit, to the UE, a first indication comprising an antenna polarization used by the base station and/or a satellite to transmit and/or receive a transmission;
• and/or the base station is configured to transmit, to the UE, a second indication comprising the antenna polarization used by the UE to transmit and/or receive a transmission,
• wherein when the first indication is indicated in a UE-specific radio resource control (RRC) message, the first indication is configured in a bandwidth part (BWP) configuration information element (IE) and/or a measurement object (MeasObj) IE;
• and/or
• when the second indication is indicated in the UE-specific RRC message, the second indication is configured in the BWP configuration IE and/or the MeasObj IE,
• wherein at least one of the following applies:
• when the first indication is indicated in the UE-specific RRC message or downlink control information (DCI) and a first transmission is transmitted with the antenna polarization, a transmit antenna of the base station and/or the satellite uses the antenna polarization;
• when the first indication is indicated in the UE-specific RRC message or the DCI and the first transmission is received with the antenna polarization, a receiver antenna of the UE uses the antenna polarization;
• when the second indication is indicated in the UE-specific RRC message or the DCI and a second transmission is transmitted with the antenna polarization, a transmit antenna of the UE uses the antenna polarization;
• or
• when the second indication is indicated in the UE-specific RRC message or the DCI and the second transmission is received with the antenna polarization, a receiver antenna of the base station and/or the satellite uses the antenna polarization.

A user equipment (UE), comprising:

• a memory;
• a transceiver;
• and
• a processor coupled to the memory and the transceiver,
• wherein the processor is configured to perform communication with a base station, wherein the communication comprises that the transceiver is configured to receive, from the base station, a first indication comprising an antenna polarization used by the base station and/or a satellite to transmit and/or receive a transmission;
• and/or the transceiver is configured to receive, from the base station, a second indication comprising the antenna polarization used by the transceiver to transmit and/or receive a transmission,
• wherein when the first indication is indicated in a UE-specific radio resource control (RRC) message, the first indication is configured in a bandwidth part (BWP) configuration information element (IE) and/or a measurement object (MeasObj) IE;
• and/or
• when the second indication is indicated in the UE-specific RRC message, the second indication is configured in the BWP configuration IE and/or the MeasObj IE,
• wherein at least one of the following applies:
• when the first indication is indicated in the UE-specific RRC message or downlink control information (DCI) and a first transmission is transmitted with the antenna polarization, a transmit antenna of the base station and/or the satellite uses the antenna polarization;
• when the first indication is indicated in the UE-specific RRC message or downlink control information (DCI) and the first transmission is received with the antenna polarization, a receiver antenna of the UE uses the antenna polarization;
• when the second indication is indicated in the UE-specific RRC message or downlink control information (DCI) and a second transmission is transmitted with the antenna polarization, a transmit antenna of the UE uses the antenna polarization;
• or
• when the second indication is indicated in the UE-specific RRC message or downlink control information (DCI) and the second transmission is received with the antenna polarization, a receiver antenna of the base station and/or the satellite uses the antenna polarization.

A base station, comprising:

• a memory;
• a transceiver;
• and
• a processor coupled to the memory and the transceiver,
• wherein the processor is configured to perform communication with a user equipment (UE), wherein the communication comprises that the transceiver is configured to transmit, to the UE, a first indication comprising an antenna polarization used by the base station and/or a satellite to transmit and/or receive a transmission;
• and/or the transceiver is configured to transmit, to the UE, a second indication comprising the antenna polarization used by the UE to transmit and/or receive a transmission,
• wherein when the first indication is indicated in a UE-specific radio resource control (RRC) message, the first indication is configured in a bandwidth part (BWP) configuration information element (IE) and/or a measurement object (MeasObj) IE;
• and/or
• when the second indication is indicated in the UE-specific RRC message, the second indication is configured in the BWP configuration IE and/or the MeasObj IE,
• wherein at least one of the following applies:
• when the first indication is indicated in the UE-specific RRC message or downlink control information (DCI) and a first transmission is transmitted with the antenna polarization, a transmit antenna of the base station and/or the satellite uses the antenna polarization;
• when the first indication is indicated in the UE-specific RRC message or the DCI and the first transmission is received with the antenna polarization, a receiver antenna of the UE uses the antenna polarization;
• when the second indication is indicated in the UE-specific RRC message or the DCI and a second transmission is transmitted with the antenna polarization, a transmit antenna of the UE uses the antenna polarization;
• or
• when the second indication is indicated in the UE-specific RRC message or the DCI and the second transmission is received with the antenna polarization, a receiver antenna of the base station and/or the satellite uses the antenna polarization.