Surface acoustic wave (saw) backscatter-based positioning
AssigneeQUALCOMM Incorporated
InventorsXiaojie Wang, Jing Sun, Mohammad Tarek Fahim, Srinivas Yerramalli
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Abstract
This disclosure provides systems, methods, and devices for wireless communication that support backscatter-based positioning. In a first aspect, a method of wireless communication includes receiving multiple measurement reports associated with a surface acoustic wave (SAW) tag device. The multiple measurement reports include, for each transmission/reception point (TRP) of multiple TRPs, a measurement report of the TRP. The method also includes determining, based on the multiple measurement reports, a position of the SAW tag device. Other aspects and features are also claimed and described.
Claims30
A method of wireless communication performed by a transmission/reception point (TRP), the method comprising:
- transmitting a tag configuration indicator that indicates a first tag configuration for a first tag device, the first tag configuration indicates a reflector configuration;
- and
- receiving a first backscatter signal from the first tag device in responsive to a positioning reference signal (PRS), the first backscatter signal based on the first tag configuration.
A transmission/reception point (TRP) comprising:
- a memory storing processor-readable code;
- and
- at least one processor coupled to the memory, the at least one processor configured to execute the processor-readable code to cause the at least one processor to:
- transmit a tag configuration indicator that indicates a tag configuration for a tag device, the tag configuration indicates a reflector configuration;
- and
- receive a backscatter signal from the tag device in responsive to a PRS, the backscatter signal based on the tag configuration.
A method of wireless communication performed by a tag device, the method comprising:
- receiving a tag configuration indicator that indicates a tag configuration for the tag device, the tag configuration indicates a reflector configuration;
- and
- transmitting, based on the tag configuration, a backscatter signal in response to a positioning reference signal (PRS).
A method of wireless communication performed by a network entity, the method comprising:
- receiving multiple measurement reports associated with a surface acoustic wave (SAW) tag device, the multiple measurement reports including, for each transmission/reception point (TRP) of multiple TRPs, a measurement report of the TRP;
- and
- determining, based on the multiple measurement reports, a position of the SAW tag device.
Dependencies are inferred from the claim text.