Partial measurement of reference signal for positioning resource
In an aspect, a wireless node (e.g., UE, gNB) performs a partial measurement of a measurement type (e.g., RSTD, Rx-Tx, etc.) of a reference signal for positioning (RS-P) resource (e.g., PRS, SRS) that includes multiple symbols, the partial measurement being measured across a subset of the multiple symbols. The wireless node transmits a measurement report that includes an indication of the first partial measurement. The communications device receives the measurement report, and determines whether a spoofing attack is associated with the RS-P based at least in part upon the measurement report.
1. A method of operating a wireless node, comprising:
performing a first partial measurement of a first measurement type of a reference signal for positioning (RS-P) resource, wherein the RS-P resource comprises a plurality of symbols within a slot in a time domain, wherein the RS-P resource has a PRS resource ID and the PRS resource ID is associated with a single beam transmitted from a single TRP, wherein the first partial measurement being measured across a first subset of the plurality of symbols of the RS-P resource; and
transmitting a measurement report that includes an indication of the first partial measurement.
2. The method of claim 1 , wherein the first subset of symbols includes two or more contiguous symbols that begin at an initial symbol of the RS-P resource.
3. The method of claim 1 , further comprising:
performing a full measurement of the first measurement type of the RS-P resource, the full measurement being measured across all symbols of the RS-P resource.
4. The method of claim 3 , wherein the measurement report includes indications of both the first partial measurement and the full measurement.
5. The method of claim 3 , wherein indications of the first partial measurement and the full measurement are transmitted via separate measurement reports.
6. The method of claim 1 , wherein the first subset of symbols includes two or more contiguous symbols that begin at a starting symbol that is later than an initial symbol of the RS-P resource.
7. The method of claim 1 , further comprising:
performing a second partial measurement of the first measurement type of the RS-P, the second partial measurement being measured across a second subset of the plurality of symbols of the RS-P resource, the second subset of symbols being different than the first subset of symbols.
8. The method of claim 7 , wherein a number of the first subset of symbols is the same as a number of the second subset of symbols.
9. The method of claim 7 , wherein a number of the first subset of symbols is different than a number of the second subset of symbols.
10. The method of claim 7 , wherein the measurement report includes indications of both the first partial measurement and the second partial measurement.
11. The method of claim 7 , wherein indications of the first partial measurement and the second partial measurement are transmitted via separate measurement reports.
12. The method of claim 1 , further comprising:
determining whether a spoofing attack is associated with the RS-P based at least in part upon the first partial measurement.
13. The method of claim 1 , further comprising:
performing at least one additional partial measurement of a second measurement type of the RS-P resource, the at least one additional partial measurement being measured across at least one subset of symbols of the plurality of symbols of the RS-P resource; and
transmitting at least one additional measurement report that includes at least one additional indication of the at least one additional partial measurement.
14. The method of claim 1 ,
wherein partial measurements of the first measurement type are performed for multiple RS-Ps, and
wherein reporting of the partial measurements is performed for less than all of the RS-Ps.
15. The method of claim 14 , wherein the reporting of the partial measurements is performed periodically, aperiodically, or semi-periodically.
16. The method of claim 1 , wherein the measurement report is transmitted in response to an on-demand request.
17. The method of claim 16 , wherein the on-demand request is configured to request a single partial measurement indication or multiple partial measurement indications.
18. The method of claim 16 , wherein the on-demand request specifies a number of the first subset of symbols, a starting symbol of the first subset of symbols, or a combination thereof.
19. The method of claim 1 , wherein the measurement report includes an indication of the first subset of symbols.
20. The method of claim 1 , wherein the first measurement type corresponds to a reference signal time difference (RSTD) measurement or a receive-transmit (Rx-Tx) time difference.
21. A method of operating a communications device, comprising:
receiving, from a wireless node, a measurement report that includes an indication of a first partial measurement of a first measurement type of a reference signal for positioning (RS-P) resource, wherein the RS-P resource comprises a plurality of symbols within a slot in a time domain, wherein the RS-P resource has a PRS resource ID and the PRS resource ID is associated with a single beam transmitted from a single TRP, wherein the first partial measurement being measured by the wireless node across a first subset of the plurality of symbols of the RS-P resource; and
determining whether a spoofing attack is associated with the RS-P based at least in part upon measurement information included in the measurement report.
22. The method of claim 21 , wherein the first subset of symbols includes two or more contiguous symbols that begin at an initial symbol of the RS-P resource.
23. The method of claim 21 , wherein the measurement report or a separate measurement report includes a full measurement of the first measurement type of the RS-P resource, the full measurement being measured by the wireless node across all symbols of the RS-P resource.
24. The method of claim 21 , wherein the first subset of symbols includes two or more contiguous symbols that begin at a starting symbol that is later than an initial symbol of the RS-P resource.
25. The method of claim 21 , wherein the measurement report or a separate measurement report includes an indication of a second partial measurement of the first measurement type of the RS-P, the second partial measurement being measured across a second subset of the plurality of symbols of the RS-P resource, the second subset of symbols being different than the first subset of symbols.
26. The method of claim 21 , further comprising:
receiving at least one additional measurement report comprising at least one additional indication of at least one additional partial measurement of a second measurement type of the RS-P resource, the at least one additional partial measurement being measured by the wireless node across at least one subset of symbols of the plurality of symbols of the RS-P resource.
27. The method of claim 21 ,
wherein partial measurements of the first measurement type are performed by the wireless node for multiple RS-Ps, and
wherein reporting of the partial measurements is performed for less than all of the RS-Ps.
28. The method of claim 21 , wherein the measurement report is received in response to an on-demand request.
29. A wireless node, comprising:
a memory;
a communication interface; and
at least one processor communicatively coupled to the memory and the communication interface, the at least one processor configured to:
perform a first partial measurement of a first measurement type of a reference signal for positioning (RS-P) resource, wherein the RS-P resource comprises a plurality of symbols within a slot in a time domain, wherein the RS-P resource has a PRS resource ID and the PRS resource ID is associated with a single beam transmitted from a single TRP, wherein the first partial measurement being measured across a first subset of the plurality of symbols of the RS-P resource; and
cause the communication interface to transmit a measurement report that includes an indication of the first partial measurement.
30. A communications device, comprising:
a memory;
a communication interface; and
at least one processor communicatively coupled to the memory and the communication interface, the at least one processor configured to:
receive, via the communication interface, from a wireless node, a measurement report that includes an indication of a first partial measurement of a first measurement type of a reference signal for positioning (RS-P) resource, wherein the RS-P resource comprises a plurality of symbols within a slot in a time domain, wherein the RS-P resource has a PRS resource ID and the PRS resource ID is associated with a single beam transmitted from a single TRP, wherein the first partial measurement being measured by the wireless node across a first subset of the plurality of symbols of the RS-P resource; and
determine whether a spoofing attack is associated with the RS-P based at least in part upon measurement information included in the measurement report.