Inter-reference signal resource usage for carrier phase measurements
Disclosed are systems, apparatuses, processes, and computer-readable media to determine a location of a device using carrier phase positioning. A process includes transmitting, at the device to a network entity, a phase measurement capability of a device (e.g., a user equipment (UE)) for subcarrier set pairs of different resources received by the device. The different resources are associated with a reference signal. The process can include receiving, at the device, a phase measurement request from a network entity for configuring phase measurements of the subcarrier set pairs of the different resources. The process can include transmitting a phase measurement report to the network entity based on the phase measurement request, the phase measurement report including information associated with a measured phase difference of at least one subcarrier set pair associated with the different resources.
1 . A method of wireless communication at a user equipment (UE), comprising:
transmitting, at the UE to a network entity, a phase measurement capability of the UE for subcarrier set pairs of different resources received by the UE, the different resources being associated with a reference signal, wherein the phase measurement capability includes:
a capability of the UE to determine phase differences between reference signal resources of a common set of reference signal resource sets associated with the reference signal;
a capability of the UE to determine phase differences between reference signal resources of different reference signal resource sets of a same transmission-reception point (TRP), the different reference signal resource sets being associated with the reference signal;
a capability of the UE to determine phase differences between reference signal resources of different reference signal resource sets of different transmission-reception points (TRPs), the different reference signal resource sets being associated with the reference signal; or
a capability of the UE to determine phase differences between reference signal resources of different positioning frequency layer;
receiving, at the UE, a phase measurement request from a network entity for configuring phase measurements of the subcarrier set pairs of the different resources; and
transmitting a phase measurement report to the network entity based on the phase measurement request, the phase measurement report including information associated with a measured phase difference of at least one subcarrier set pair associated with the different resources.
2 . The method of claim 1 , further comprising:
receiving, at the UE from the network entity, configuration information based on the phase measurement capability of the UE, the configuration information indicating to the UE to measure the at least one subcarrier set pair using multiple reference signal resources configured on common symbols or different symbols.
3 . A method of wireless communication at a network entity, comprising:
receiving, at the network entity from a user equipment (UE), a phase measurement capability of the UE for subcarrier set pairs of different resources received by the UE, the different resources being associated with a reference signal, wherein the phase measurement capability includes:
a capability of the UE to determine phase differences between reference signal resources of a common set of reference signal resource sets associated with the reference signal;
a capability of the UE to determine phase differences between reference signal resources of different reference signal resource sets of a same transmission-reception point (TRP), the different reference signal resource sets being associated with the reference signal;
a capability of the UE to determine phase differences between reference signal resources of different reference signal resource sets of different transmission-reception points (TRPs), the different reference signal resource sets being associated with the reference signal; or
a capability of the UE to determine phase differences between reference signal resources of different positioning frequency layer;
transmitting, at the network entity to the UE, a phase measurement request from a network entity for configuring phase measurements of the subcarrier set pairs of the different resources; and
receiving, at the network entity from the UE, a phase measurement report to the network entity based on the phase measurement request, the phase measurement report including information associated with a measured phase difference of at least one subcarrier set pair associated with the different resources.
4 . An apparatus for wireless communications, comprising:
a memory; and
one or more processors coupled to the memory, the one or more processors being configured to:
transmit, to a network entity, a phase measurement capability of the apparatus for subcarrier set pairs of different resources received by the apparatus, the different resources be associated with a reference signal, wherein the phase measurement capability includes:
a capability of the apparatus to determine phase differences between reference signal resources of a common set of reference signal resource sets associated with the reference signal;
a capability of the apparatus to determine phase differences between reference signal resources of different reference signal resource sets of a same transmission-reception point (TRP), the different reference signal resource sets being associated with the reference signal;
a capability of the apparatus to determine phase differences between reference signal resources of different reference signal resource sets of different transmission-reception points (TRPs), the different reference signal resource sets being associated with the reference signal; or
a capability of the apparatus to determine phase differences between reference signal resources of different positioning frequency layer;
receive a phase measurement request from a network entity for configure phase measurements of the subcarrier set pairs of the different resources; and
transmit a phase measurement report to the network entity based on the phase measurement request, the phase measurement report including information associated with a measured phase difference of at least one subcarrier set pair associated with the different resources.
5 . The apparatus of claim 4 , wherein the one or more processors are configured to:
receive, from the network entity, configuration information based on the phase measurement capability of the apparatus, the configuration information indicating to the apparatus to measure the at least one subcarrier set pair use multiple reference signal resources configured on common symbols.
6 . The apparatus of claim 4 , wherein the one or more processors are configured to:
receive, from the network entity, configuration information based on the phase measurement capability of the apparatus, the configuration information indicating to the apparatus to measure the at least one subcarrier set pair use multiple reference signal resources configured on different symbols.
7 . The apparatus of claim 4 , wherein the one or more processors are configured to:
receive, from the network entity, configuration information based on the phase measurement capability of the apparatus, the configuration information indicating to the apparatus to measure the at least one subcarrier set pair using at least two different reference signal resources covering different parts of a bandwidth part (BWP).
8 . The apparatus of claim 4 , wherein the one or more processors are configured to:
receive, from the network entity, configuration information based on the phase measurement capability of the apparatus, the configuration information indicating to the apparatus to measure the at least one subcarrier set pair using at least two different reference signal resources cover different resource element (RE) allocations of a reference signal resource.
9 . The apparatus of claim 4 , wherein, based on the phase measurement request, the phase measurement report includes a phase measurement for each symbol of one or more symbols associated with a reference signal resource of the reference signal.
10 . The apparatus of claim 4 , wherein, based on the phase measurement request, the phase measurement report includes a phase measurement associated with a best measured phase difference among a set of symbols associated with a reference signal resource of the reference signal.
11 . The apparatus of claim 4 , wherein, based on the phase measurement request, the phase measurement report includes a representative phase measurement associated with a representative phase difference among a set of symbols associated with a reference signal resource of the reference signal.
12 . The apparatus of claim 4 , wherein the phase measurement request includes a maximum number of subcarrier phase measurements for the apparatus to at least one of perform or report for a reference signal resource of the reference signal.
13 . The apparatus of claim 4 , wherein, based on the phase measurement request, the phase measurement report includes a plurality of measurements associated with a reference signal resource of the reference signal.
14 . The apparatus of claim 4 , wherein, based on the phase measurement request, the phase measurement report includes a measurement for each symbol of a reference signal resource.
15 . The apparatus of claim 4 , wherein each measurement in the phase measurement report includes a timestamp corresponding to a symbol associated with each measurement.
16 . An apparatus for wireless communications, comprising:
a memory; and
one or more processors coupled to the memory, the one or more processors being configured to:
receive, from a user equipment (UE), a phase measurement capability of the UE for subcarrier set pairs of different resources received by the UE, the different resources be associated with a reference signal, wherein the phase measurement capability includes:
a capability of the UE to determine phase differences between reference signal resources of a common set of reference signal resource sets associated with the reference signal;
a capability of the UE to determine phase differences between reference signal resources of different reference signal resource sets of a same transmission-reception point (TRP), the different reference signal resource sets being associated with the reference signal;
a capability of the UE to determine phase differences between reference signal resources of different reference signal resource sets of different transmission-reception points (TRPs), the different reference signal resource sets being associated with the reference signal; or
a capability of the UE to determine phase differences between reference signal resources of different positioning frequency layer;
transmit, to the UE, a phase measurement request from a network entity for configure phase measurements of the subcarrier set pairs of the different resources; and
receive, from the UE, a phase measurement report to the network entity based on the phase measurement request, the phase measurement report including information associated with a measured phase difference of at least one subcarrier set pair associated with the different resources.
17 . The apparatus of claim 16 , wherein the one or more processors are configured to:
transmit, to the UE, configuration information based on the phase measurement capability of the UE, the configuration information indicating to the UE to measure the at least one subcarrier set pair use multiple reference signal resources configured on common symbols.
18 . The apparatus of claim 16 , wherein the one or more processors are configured to:
transmit, to the UE, configuration information based on the phase measurement capability of the UE, the configuration information indicating to the UE to measure the at least one subcarrier set pair use multiple reference signal resources configured on different symbols.
19 . The apparatus of claim 16 , wherein the one or more processors are configured to:
transmit, to the UE, configuration information based on the phase measurement capability of the UE, the configuration information indicating to the UE to measure the at least one subcarrier set pair using at least two different reference signal resources covering different parts of a bandwidth part (BWP).
20 . The apparatus of claim 16 , wherein the one or more processors are configured to:
transmit, to the UE, configuration information based on the phase measurement capability of the UE, the configuration information indicating to the UE to measure the at least one subcarrier set pair using at least two different reference signal resources covering different resource element (RE) allocations of a reference signal resource.
21 . The apparatus of claim 16 , wherein, based on the phase measurement request, the phase measurement report includes a phase measurement for each symbol of one or more symbols associated with a reference signal resource of the reference signal.
22 . The apparatus of claim 16 , wherein, based on the phase measurement request, the phase measurement report includes a phase measurement associated with a best measured phase difference among a set of symbols associated with a reference signal resource of the reference signal.
23 . The apparatus of claim 16 , wherein, based on the phase measurement request, the phase measurement report includes a representative phase measurement associated with a representative phase difference among a set of symbols associated with a reference signal resource of the reference signal.
24 . The apparatus of claim 16 , wherein the phase measurement request includes a maximum number of subcarrier phase measurements for the UE to at least one of perform or report for a reference signal resource of the reference signal.
25 . The apparatus of claim 16 , wherein, based on the phase measurement request, the phase measurement report includes a plurality of measurements associated with a reference signal resource of the reference signal.