CPC H04B 7/0626 (2013.01) [H04L 5/0048 (2013.01); H04W 24/08 (2013.01); H04W 72/0453 (2013.01); H04W 72/20 (2023.01)] | 17 Claims |
1. A method of a user equipment (UE) for controlling an antenna port of the UE in a wireless communication system, the method comprising:
selecting a band for receiving control information and data among a plurality of bands, wherein a number of receiving antenna ports of the UE is greater than or equal to a minimum required number of receiving antenna ports configured for the band;
transmitting, to a base station, UE capability information indicating whether the UE supports activation and deactivation of the receiving antenna ports of the UE for the selected band;
receiving antenna port activation indication information from the base station, in response to the UE capability information, wherein the antenna port activation indication information indicates an Rx mode per bandwidth part (BWP) in the selected band, the Rx mode indicating states of the activation and deactivation of the receiving antenna ports;
identifying whether to activate or deactivate at least one of the receiving antenna ports, based on the received antenna port activation indication information;
receiving an indication of changing BWP used by the UE to a certain BWP via media access control (MAC) control element (CE) or downlink control information (DCI); and
changing, in response to the indication, an Rx mode from a first Rx mode to a second Rx mode based on the antenna port activation indication information,
wherein the second Rx mode corresponds to the certain BWP.
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