Line-of-sight status
Various aspects of the present disclosure generally relate to wireless communication. Some aspects relate to reporting of line-of-sight (LOS) status. Some aspects more specifically relate to detecting whether a user equipment (UE) is associated with a LOS status. In some examples, the UE reports location information indicating a location of the UE with the reporting of whether the UE is associated with the LOS status. In some examples a network node determines the location information. In some examples, the UE detects whether the UE is associated with the LOS status based on one or more configured thresholds. In some examples, the detection of whether the UE is associated with the LOS status is based on channel estimation at the UE.
1 . A user equipment (UE) for wireless communication, comprising:
one or more antennas; and
a processing system that includes one or more processors and one or more memories that store code and are coupled with the one or more processors, the processing system configured to cause the UE to:
receive information indicating one or more thresholds associated with a line-of-sight (LOS) status with regard to a network node,
wherein the one or more thresholds include at least one of:
a first threshold for a difference between a strongest tap of an estimated channel and a second-strongest tap of the estimated channel, or
a second threshold relating to an expected value of the strongest tap and a standard deviation of the strongest tap; and
transmit, in accordance with the information indicating the one or more thresholds, a report of whether the UE is associated with the LOS status with regard to the network node.
2 . The UE of claim 1 , wherein the report includes location information indicating a location of the UE.
3 . The UE of claim 2 , wherein the report includes the location information based at least in part on the UE being associated with a consent to share the location information.
4 . The UE of claim 1 , wherein the processing system is further configured to cause the UE to perform channel estimation of an estimated channel, wherein the processing system, to cause the UE to transmit the report, is configured to cause the UE to transmit the report based at least in part on the channel estimation.
5 . The UE of claim 4 , wherein the channel estimation is further based at least in part on one or more previous channel estimation operations.
6 . The UE of claim 1 , wherein the LOS status indicates whether the UE is within an LOS of the network node.
7 . The UE of claim 1 , wherein the processing system, to transmit the report, is configured to cause the UE to:
transmit the report only if the UE is associated with a non-LOS (NLOS) status.
8 . A network node for wireless communication, comprising:
one or more antennas; and
a processing system that includes one or more processors and one or more memories that store code and are coupled with the one or more processors, the processing system configured to cause the network node to:
transmit information indicating one or more thresholds associated with a line-of-sight (LOS) status with regard to a user equipment (UE),
wherein the one or more thresholds include at least one of:
a first threshold for a difference between a strongest tap of an estimated channel and a second-strongest tap of the estimated channel, or
a second threshold relating to an expected value of the strongest tap and a standard deviation of the strongest tap;
receive, in accordance with the information indicating the one or more thresholds, a report of whether the UE is associated with the LOS status with regard to the network node; and
provide the report or information associated with the report.
9 . The network node of claim 8 , wherein the processing system is configured to cause the network node to obtain, in association with the report, location information associated with the UE.
10 . The network node of claim 9 , wherein the report includes the location information.
11 . The network node of claim 9 , wherein, to cause the network node to obtain the location information, the processing system is configured to cause the network node to obtain the location information in association with a wireless local area network.
12 . The network node of claim 9 , wherein, to cause the network node to obtain the location information, the processing system is configured to cause the network node to obtain the location information using a network location technique.
13 . The network node of claim 8 , wherein the LOS status indicates whether a given UE is within an LOS of the network node.
14 . The network node of claim 8 , wherein the processing system is configured to cause the network node to:
receive, from another UE, another report of whether the other UE is associated with the LOS status with regard to the network node.
15 . A method of wireless communication performed at a user equipment (UE), comprising:
receiving information indicating one or more thresholds associated with a line-of-sight (LOS) status with regard to a network node,
wherein the one or more thresholds include at least one of:
a first threshold for a difference between a strongest tap of an estimated channel and a second-strongest tap of the estimated channel, or
a second threshold relating to an expected value of the strongest tap and a standard deviation of the strongest tap; and
transmitting, in accordance with the information indicating the one or more thresholds, a report of whether the UE is associated with the LOS status with regard to the network node.
16 . The method of claim 15 , wherein the report includes location information indicating a location of the UE.
17 . The method of claim 16 , wherein the report includes the location information based at least in part on the UE being associated with a consent to share the location information.
18 . The method of claim 15 , further comprising performing channel estimation of an estimated channel, wherein transmitting the report further comprises transmitting the report based at least in part on the channel estimation.
19 . The method of claim 18 , wherein the channel estimation is further based at least in part on one or more previous channel estimation operations.
20 . The method of claim 15 , wherein the LOS status indicates whether the UE is within an LOS of the network node.
21 . The method of claim 15 , wherein transmitting the report comprises:
transmitting the report only if the UE is associated with a non-LOS (NLOS) status.
22 . A method of wireless communication performed at a network node, comprising:
transmitting information indicating one or more thresholds associated with a line-of-sight (LOS) status with regard to a user equipment (UE),
wherein the one or more thresholds include at least one of:
a first threshold for a difference between a strongest tap of an estimated channel and a second-strongest tap of the estimated channel, or
a second threshold relating to an expected value of the strongest tap and a standard deviation of the strongest tap;
receiving, in accordance with the information indicating the one or more thresholds, a report of whether the UE is associated with the LOS status with regard to the network node; and
providing the report or information associated with the report.
23 . The method of claim 22 , further comprising obtaining, in association with the report, location information associated with the UE.
24 . The method of claim 23 , wherein the report includes the location information.
25 . The method of claim 23 , wherein obtaining the location information further comprises obtaining the location information in association with a wireless local area network.
26 . The method of claim 23 , wherein obtaining the location information further comprises obtaining the location information using a network location technique.
27 . The method of claim 22 , wherein the LOS status indicates whether a given UE is within an LOS of the network node.
28 . The method of claim 22 , further comprising:
receiving, from another UE, another report of whether the other UE is associated with the LOS status with regard to the network node.