US 11,799,703 B2 · Opportunistic frequency switching for frame based equipment

Abstract

Techniques providing opportunistic frequency switching for frame based equipment (FBE), such as may be configured to minimize opportunistic frequency switching delay in FBE new radio (NR) unlicensed (NR-U) networks and/or to provide frequency diversity FBE access based on offset sequences of medium sensing occasions for the carrier frequencies are disclosed. Within the FBE mode network, a base station may configure a pattern of sensing locations in each frame for each frequency transmission unit of the plurality of frequency transmission units, wherein an inter-unit delay of sensing locations between a first frequency transmission unit and a next adjacent frequency transmission unit and between a last frequency transmission unit and the first frequency transmission unit is a fixed duration. Opportunistic frequency switching of embodiments may utilize the medium sensing locations for opportunistically switching between a sequence of the frequency transmission units for implementing frequency diversity FBE access.

Claims20

Dependent claims

A method of wireless communication, comprising:

monitoring, by a transmitter device, for an event in a medium sensing occasion of a sequence of medium sensing occasions for a current carrier frequency of a sequence of carrier frequencies, wherein the sequence of carrier frequencies comprises a plurality of carrier frequencies available for communications from the transmitter device to a receiver device, and wherein a different sequence of medium sensing occasions is defined for each carrier frequency of the sequence of carrier frequencies in which a beginning of each medium sensing occasion of the sequence of medium sensing occasions for a carrier frequency of the sequence of carrier frequencies is offset from a beginning of each respective medium sensing occasion of the sequence of medium sensing occasions for another carrier frequency of the sequence of carrier frequencies by at least a tuning guard period;
and
controlling sequentially switching, by the transmitter device, between carrier frequencies of the sequence of carrier frequencies for transmitting communications from the transmitter device to the receiver device based upon the result of monitoring the event in the medium sensing occasion.

An apparatus for wireless communication, the apparatus comprising:

at least one processor;
and
a memory coupled to the at least one processor, wherein the at least one processor is configured to:
monitor, by a transmitter device, for an event in a medium sensing occasion of a sequence of medium sensing occasions for a current carrier frequency of a sequence of carrier frequencies, wherein the sequence of carrier frequencies comprises a plurality of carrier frequencies available for communications from a transmitter device to a receiver device, and wherein a different sequence of medium sensing occasions is defined for each carrier frequency of the sequence of carrier frequencies in which a beginning of each medium sensing occasion of the sequence of medium sensing occasions for a carrier frequency of the sequence of carrier frequencies is offset from a beginning of each respective medium sensing occasion of the sequence of medium sensing occasions for another carrier frequency of the sequence of carrier frequencies by at least a tuning guard period;
and
control sequentially switching, by the transmitter device, between carrier frequencies of the sequence of carrier frequencies for transmitting communications from the transmitter device to the receiver device based upon the result of monitoring the event in the medium sensing occasion.

3 more elements

Dependencies are inferred from the claim text.

Opportunistic frequency switching for frame based equipment

Life of this patent

Opportunistic frequency switching for frame based equipment

Life of this patent

Abstract

Claims20