Frequency modulated continuous wave syncrhonization signal design
AssigneeQUALCOMM Incorporated
InventorsKangqi LIU, Jing SUN, Weimin DUAN, Jing JIANG
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Abstract
Aspects relate to an FMCW waveform design for synchronization signals in which two FMCW signals with opposite direction slopes are concatenated in time. For example, a first FMCW signal with a linearly decreasing slope can be concatenated in time with a second FMCW signal with a linearly increasing slope. The resulting V-shaped or inverse V-shaped FMCW waveform may be utilized for transmission of a synchronization signal, such as a primary synchronization signal (PSS) or other light synchronization signal block (SSB) signal.
Claims30
An apparatus operable at a user equipment (UE), comprising:
- one or more memories;
- and
- one or more processors coupled to the one or more memories, wherein the one or more processors are configured to:
- obtain a synchronization signal comprising a frequency modulated continuous wave (FMCW) waveform, wherein the FMCW waveform concatenates in time a first FMCW signal comprising a linearly decreasing slope with a second FMCW signal comprising a linearly increasing slope;
- and
- perform frequency and time estimation based on the FMCW waveform.
A method operable at a user equipment (UE), comprising:
- obtaining a synchronization signal comprising a frequency modulated continuous wave (FMCW) waveform, wherein the FMCW waveform concatenates in time a first FMCW signal comprising a linearly decreasing slope with a second FMCW signal comprising a linearly increasing slope;
- and
- performing frequency and time estimation based on the FMCW waveform.
An apparatus operable at a network entity, comprising:
- one or more memories;
- and
- one or more processors coupled to the one or more memories, wherein the one or more processors are configured to:
- provide a first frequency modulated continuous wave (FMCW) signal comprising a linearly increasing slope;
- and
- provide a second FMCW signal comprising a linearly decreasing slope, wherein the first FMCW signal is concatenated in time with the second FMCW signal to produce a frequency modulated continuous wave (FMCW) waveform comprising a synchronization signal.
A method operable at a network entity, comprising:
- providing a first frequency modulated continuous wave (FMCW) signal comprising a linearly increasing slope;
- and
- providing a second FMCW signal comprising a linearly decreasing slope, wherein the first FMCW signal is concatenated in time with the second FMCW signal to produce a frequency modulated continuous wave (FMCW) waveform comprising a synchronization signal.
Dependencies are inferred from the claim text.