TECHNICAL FIELD

This disclosure relates to multi-carrier frequency grip detection and case detection.

BACKGROUND

The effects of the user hand grip on the design of 5G millimeter-wave mobile handsets have been studied, specifically in terms of the antenna module placement and the beamforming codebook. The loss from hand blockage on the antenna gains can be up to 20-25 dB, which implies that the possible hand grip profiles may be considered while designing the antenna module placement and beamforming codebook.

SUMMARY

Disclosed herein are implementations of multi-carrier frequency grip detection and case detection.

In a first aspect, the subject matter described in this specification can be embodied in handheld computing devices that include a first antenna, a second antenna, and a processing apparatus configured to determine a first signal strength of a first signal received using the first antenna from a source device; determine a second signal strength of a second signal received using the second antenna from the source device; compare the first signal strength with the second signal strength; and detect a grip condition for a device including the first antenna and the second antenna based on the comparison of the first signal strength with the second signal strength.

In a second aspect, the subject matter described in this specification can be embodied in methods that include determining a first signal strength of a first signal received using a first antenna from a source device; determining a second signal strength of a second signal received using a second antenna from the source device; comparing the first signal strength with the second signal strength; and detecting a detuned condition for a device including the first antenna and the second antenna based on the comparison of the first signal strength with the second signal strength.

In a third aspect, the subject matter described in this specification can be embodied in systems that include a first antenna, a second antenna, and a processing apparatus configured to determine a first signal strength of a first signal received using the first antenna from a source device; determine a second signal strength of a second signal received using the second antenna from the source device; compare the first signal strength with the second signal strength; and detect a detuned condition for a device including the first antenna and the second antenna based on the comparison of the first signal strength with the second signal strength.

