Multi-port-measurement feedback

A user equipment (UE) comprising:

• receiving means for receiving positioning signals from a positioning-signal source;
• measuring means for measuring a plurality of the positioning signals, from a plurality of ports, spanning a collection of Orthogonal Frequency Division Multiplexed symbols to obtain a plurality of multi-port measurements;
• determining means for determining, based on the plurality of multi-port measurements, that a particular effective beam corresponds to an earliest time of arrival from the positioning-signal source to the UE of a plurality of effective beams associated with the plurality of ports,
• wherein the determining means are for choosing the particular effective beam from a codebook based on the plurality of multi-port measurements to determine that the particular effective beam corresponds to the earliest time of arrival of the plurality of effective beams, wherein the codebook comprises a plurality of steering vectors, and wherein the sending means are for selecting a beam index, as the beam indication, indicative of a particular steering vector, of the plurality of steering vectors, that corresponds to the particular effective beam;
• and
• sending means for sending, to a first network entity, a beam indication indicative of the particular effective beam.

A method of providing multi-port-measurement feedback, the method comprising:

• measuring, at a user equipment (UE) from a positioning-signal source, a plurality of positioning signals, from a plurality of ports, spanning a collection of Orthogonal Frequency Division Multiplexed symbols to obtain a plurality of multi-port measurements;
• determining, based on the plurality of multi-port measurements, that a particular effective beam corresponds to an earliest time of arrival from the positioning-signal source to the UE of a plurality of effective beams associated with the plurality of ports,
• wherein determining that the particular effective beam corresponds to the earliest time of arrival of the plurality of effective beams comprises choosing the particular effective beam from a codebook based on the plurality of multi-port measurements, wherein the codebook comprises a plurality of steering vectors, and wherein the beam indication comprises a beam index indicative of a particular steering vector, of the plurality of steering vectors, that corresponds to the particular effective beam;
• and
• sending, to a first network entity from the UE, a beam indication indicative of the particular effective beam.

A non-transitory, processor-readable storage medium comprising processor-readable instructions to cause a processor of a user equipment (UE) to:

• measure, from a positioning-signal source, a plurality of positioning signals, from a plurality of ports, spanning a collection of Orthogonal Frequency Division Multiplexed symbols to obtain a plurality of multi-port measurements;
• determine, based on the plurality of multi-port measurements, that a particular effective beam corresponds to an earliest time of arrival from the positioning-signal source to the UE of a plurality of effective beams associated with the plurality of ports,
• wherein to determine that the particular effective beam corresponds to the earliest time of arrival of the plurality of effective beams, the processor is configured to choose the particular effective beam from a codebook based on the plurality of multi-port measurements, wherein the codebook comprises a plurality of steering vectors, and wherein the beam indication comprises a beam index indicative of a particular steering vector, of the plurality of steering vectors, that corresponds to the particular effective beam;
• and
• send, to a first network entity from the UE, a beam indication indicative of the particular effective beam.