US 2026/0050073 A1 · HYBRID FREQUENCY-MODULATED CONTINUOUS WAVE DESIGN FOR CELL SEARCH AND MEASUREMENT

Abstract

Methods, systems, and devices for wireless communications are described. Generally, the described techniques enable a first wireless device to scramble at least a portion of one or more frequency-modulated continuous wave (FMCW) signals (e.g., hybrid FMCW signals) using a scrambling identifier, which may enable a second wireless device to differentiate between FMCW signals based on identifying the scrambling identifier. For example, the first wireless device may scramble at least a portion of an upchirp signal, a downchirp signal, or both, of an FMCW signal. The second wireless device may identify the scrambling identifier based on attempting to descramble the scrambled portion of the FMCW signal using multiple candidate scrambling identifiers. In some examples, a scrambling pattern (e.g., which portion of the upchirp signal, downchirp signal, or both, is scrambled) of a hybrid FMCW signal may indicate information associated with the first wireless device.

Claims30

Dependent claims

A user equipment (UE), comprising:

one or more memories storing processor-executable code;
and
one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the UE to:
monitor, over a bandwidth, for a frequency-modulated continuous wave (FMCW) signal associated with a cell, wherein the FMCW signal comprises a first signal that increases in frequency from a first frequency to a second frequency in a time interval and a second signal that decreases in frequency from the second frequency to the first frequency in the time interval, and wherein at least a portion of the first signal, the second signal, or both, is scrambled in accordance with a scrambling identifier;
identify, based at least in part on the FMCW signal, the scrambling identifier from a plurality of candidate scrambling identifiers, wherein the scrambling identifier is a function of cell information of the cell;
and
communicate one or more messages with the cell based at least in part on the cell information.

4 more elements

A network entity, comprising:

one or more memories storing processor-executable code;
and
one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the network entity to:
output, over a bandwidth, a frequency-modulated continuous wave (FMCW) signal associated with a cell, the FMCW signal comprising a first signal that increases in frequency from a first frequency to a second frequency in a time interval and a second signal that decreases in frequency from the second frequency to the first frequency in the time interval, wherein at least a portion of the first signal, the second signal, or both, is scrambled in accordance with a scrambling identifier from a plurality of candidate scrambling identifiers, and wherein the scrambling identifier is a function of cell information of the cell;
and
communicate one or more messages with a user equipment (UE) based at least in part on the cell information.

3 more elements

Dependencies are inferred from the claim text.

Hybrid frequency-modulated continuous wave design for cell search and measurement

Life of this patent

Hybrid frequency-modulated continuous wave design for cell search and measurement

Life of this patent

Abstract

Claims30