This disclosure provides a microwave radio transmitter for radio transmission to a microwave radio receiver. The microwave radio transmitter comprises an antenna arrangement and a baseband processing module connected to the antenna arrangement. The antenna arrangement comprises an antenna having a polarization. The baseband processing module is configured to receive a polarization misalignment indication from the microwave radio receiver. The polarization misalignment indication is indicative of a misalignment between the polarization of the antenna and a corresponding polarization of a receive antenna comprised in the microwave radio receiver. The baseband processing module is configured to compensate for polarization misalignment between the antenna and the receive antenna by adjusting the radio transmission based on the polarization misalignment indication.

A wireless device includes a first antenna and a second antenna that may be used to communicate with a wireless network. The wireless device initiates a traffic call with a wireless network and activates a first antenna to be used to communicate with the wireless network upon initiating the traffic call. The wireless device selectively activates a second antenna, when initiating the traffic call, based at least in part on a usage of the second antenna during a previous traffic call. For example, the wireless device may maintain the second antenna in an inactive state if the second antenna was deactivated during the previous traffic call and/or remained inactive for at least a threshold duration.

Certain aspects of the present disclosure relate to methods and apparatus for wireless communication. More particularly, aspects of the present disclosure generally relate to techniques for wireless communications by a first apparatus comprising a first interface for obtaining, via at least one receive antenna, first and second training signals transmitted from a second apparatus via at least first and second transmit antennas having different polarizations, and a processing system configured to determine, based on the first and second training signals, one or more characteristics for different transmit-receive antenna pairs, each pair comprising one of the first and second transmit antennas and the at least one receive antenna, and generate, based on the one or more characteristics, a parameter indicative of a rotation of the first apparatus relative to the second apparatus.

A method is provided for generating precoder data, comprising: obtaining transmit power data indicative of a transmit power of a plurality of multiple-input/multiple-output signals; obtaining signal quality data, the signal quality data including at least one measure of a quality of the plurality of multiple-input/multiple-output signals; obtaining channel data with respect to a wireless channel, the channel data including a measure of respective channel parameters of each of a plurality of channel paths in the wireless channel; constraining one or more system performance parameters; and determining first and second precoder diagonal values (wA and wB) based on the signal quality data, the transmit power data, the channel data, and the one or more constrained system performance parameters.

Aspects of the subject disclosure may include, for example, obtaining data regarding interference detected in a received communication signal, and performing polarization adjusting by rotating one or more radiating elements of an antenna system such that an impact of the interference on the antenna system is minimized. Other embodiments are disclosed.

Aspects of the subject disclosure may include, for example, obtaining data regarding interference detected in a received communication signal, and performing polarization adjusting for one or more orthogonally-polarized element pairs of an antenna system such that an impact of the interference on the antenna system is minimized. Other embodiments are disclosed.

Beam management triggers due to polarization imbalance with UE cases and covers are described. An apparatus is configured to perform a polarization imbalance measurement(s), for a UE external covering or case, of a signal transmission(s). The apparatus is configured to switch to a set of beam weights for communication between the UE and a network node for polarization imbalance mitigation. The apparatus is configured to communicate, with the network node, based on the set of beam weights. Another apparatus is configured to transmit, for a UE, a signal transmission(s) for a polarization imbalance measurement(s) for an external covering or case of the UE. The apparatus is configured to receive, from the UE, a beamforming indication indicative of a request to switch to a set of beam weights for polarization imbalance mitigation. The apparatus is configured to communicate, with the UE, based on the set of beam weights.

Aspects of the subject disclosure may include, for example, obtaining data regarding interference detected in a received communication signal, and performing phase adjusting for one or more radiating elements of an antenna system such that an impact of the interference on the antenna system is minimized. Other embodiments are disclosed.

Aspects of the subject disclosure may include, for example, identifying one or more radiating elements of an antenna system that are to be adjusted based on interference determined to affect an operation of the antenna system, and altering one or more properties of the one or more radiating elements to effect polarization adjusting such that an impact of the interference on the antenna system is minimized. Other embodiments are disclosed.

Aspects of the subject disclosure may include, for example, obtaining data regarding interference detected in a received communication signal, and performing phase adjusting for one or more radiating elements of an antenna system such that an impact of the interference on the antenna system is minimized. Other embodiments are disclosed.