Sidelink-assisted positioning
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to another UE, a positioning request associated with a procedure for determining a position of the UE, wherein the positioning request comprises a sidelink communication between a first sidelink location management component (S-LMC) of the UE and a second S-LMC of the other UE, wherein the first S-LMC and the second S-LMC comprise sub-functions associated with a vehicle-to-everything protocol layer; and receive a positioning report associated with the procedure for determining the position of the UE, wherein the positioning report comprises an indication of the position of the UE based at least in part on a determination by a sidelink location management function. Numerous other aspects are provided.
1 . A user equipment (UE) for wireless communication, comprising:
one or more transceivers;
a memory; and
one or more processors coupled to the one or more transceivers and the memory, the memory and the one or more processors configured to:
receive, via the one or more transceivers, a capability request from another UE, wherein the capability request is associated with one or more positioning measurements that the UE is capable of performing;
provide, to the other UE via the one or more transceivers, capability information associated with the UE, wherein the capability information associated with the UE indicates the one or more positioning measurements that the UE is capable of performing;
transmit, to the other UE via the one or more transceivers, a positioning request associated with a procedure for determining a position of the UE, wherein the positioning request comprises a sidelink communication, performed using PC5 signaling, between a first sidelink location management component (S-LMC) of the UE and a second S-LMC of the other UE; and
receive, via the one or more transceivers, a positioning report associated with the procedure for determining the position of the UE, wherein the positioning report comprises an indication of the position of the UE.
2 . The UE of claim 1 ,
wherein each of the first S-LMC and the second S-LMC supports at least one of:
a capability request operation,
a capability response operation,
an assistance data receipt operation,
an assistance data provision operation,
a measurement operation,
a measurement receipt operation,
a first location determination operation associated with the UE,
a second location determination operation associated with the other UE, or
a combination thereof.
3 . The UE of claim 1 ,
wherein the UE is associated with a vehicle, and wherein the other UE is associated with a vehicle or a roadside unit.
4 . The UE of claim 1 ,
wherein the memory and the one or more processors are further configured to:
receive, via the one or more transceivers, a set of assistance data from the other UE, wherein the set of assistance data comprises a set of positioning reference signal (PRS) configuration information associated with at least one of:
the UE,
the other UE, or
a combination thereof.
5 . The UE of claim 4 ,
wherein the memory and the one or more processors are further configured to:
receive, via the one or more transceivers, an incoming PRS based at least in part on the set of assistance data;
obtain a positioning measurement based at least in part on the incoming PRS; and
transmit, to the other UE via the one or more transceivers, at least one of:
the positioning measurement,
an error associated with the positioning measurement, or
a combination thereof.
6 . The UE of claim 4 ,
wherein the memory and the one or more processors are further configured to:
transmit, to the other UE via the one or more transceivers, an outgoing PRS based at least in part on the set of assistance data, wherein the outgoing PRS is to facilitate a positioning measurement obtained by the other UE; and
receive, from the other UE via the one or more transceivers, at least one of:
the positioning measurement,
an error associated with the positioning measurement, or
a combination thereof.
7 . The UE of claim 4 ,
wherein the memory and the one or more processors are further configured to transmit, to a sidelink location management function (S-LMF) via the one or more transceivers, at least one of:
the set of assistance data,
a first positioning measurement obtained by the UE,
an error associated with the first positioning measurement,
a second positioning measurement received from the other UE,
an error associated with the second positioning measurement, or
a combination thereof.
8 . The UE of claim 7 ,
wherein the S-LMF is provided by a V2X application server, and
wherein the UE communicates with the S-LMF via a V1 interface.
9 . The UE of claim 7 ,
wherein the S-LMF is provided by a wireless core network, and
wherein the UE communicates with the S-LMF via a long term evolution positioning protocol.
10 . The UE of claim 1 ,
wherein the memory and the one or more processors are further configured to:
receive, via the one or more transceivers, a vehicle positioning measurement from a sensor associated with a vehicle corresponding to the UE; and
transmit, to a sidelink location management function (S-LMF) via the one or more transceivers, the vehicle positioning measurement.
11 . The UE of claim 10 ,
wherein the sensor comprises a wheel sensor, and wherein the vehicle positioning measurement comprises velocity information.
12 . The UE of claim 1 ,
wherein the memory and the one or more processors are further configured to:
transmit, via the one or more transceivers, an additional positioning request to a third UE, wherein the additional positioning request comprises an additional sidelink communication between the first S-LMC of the UE and a third S-LMC of the third UE.
13 . The UE of claim 12 ,
wherein the memory and the one or more processors are further configured to:
receive, via the one or more transceivers, a first capability request from the other UE;
receive, via the one or more transceivers, a second capability request from the third UE;
provide, to the other UE via the one or more transceivers, capability information associated with the UE; and
provide, to the third UE via the one or more transceivers, the capability information associated with the UE.
14 . The UE of claim 12 ,
wherein the memory and the one or more processors are further configured to:
receive, via the one or more transceivers, a first set of assistance data from the other UE; and
receive, via the one or more transceivers, a second set of assistance data from the third UE.
15 . The UE of claim 14 ,
wherein the first set of assistance data comprises positioning reference signal (PRS) configuration information associated with at least one of the UE, the other UE, or a combination thereof, and
wherein the second set of assistance data comprises PRS configuration information associated with at least one of the UE, the third UE, or a combination thereof.
16 . The UE of claim 15 ,
wherein the memory and the one or more processors are further configured to:
receive, via the one or more transceivers, a first PRS from the other UE based at least in part on the first set of assistance data;
receive, via the one or more transceivers, a second PRS from the third UE based at least in part on the second set of assistance data;
obtain at least one positioning measurement based at least in part on at least one of:
the first PRS,
the second PRS, or
a combination thereof; and
transmit, via the one or more transceivers, the at least one positioning measurement to at least one of the other UE, the third UE, or a combination thereof.
17 . The UE of claim 15 ,
wherein the memory and the one or more processors are further configured to transmit, via the one or more transceivers, at least one of:
a first outgoing PRS based at least in part on the first set of assistance data,
a second outgoing PRS based at least in part on the second set of assistance data, or
a combination thereof.
18 . The UE of claim 12 ,
wherein the memory and the one or more processors are further configured to:
receive, via the one or more transceivers, a vehicle positioning measurement from a sensor associated with a vehicle corresponding to the UE; and
transmit, via the one or more transceivers, to at least one of the other UE, the third UE, or a combination thereof, at least one of:
the vehicle positioning measurement,
an error associated with the vehicle positioning measurement, or
a combination thereof.
19 . The UE of claim 18 ,
wherein the sensor comprises a wheel sensor, and wherein the vehicle positioning measurement comprises velocity information.
20 . The UE of claim 12 ,
wherein the UE receives, via the one or more transceivers, the positioning report from at least one of:
the other UE,
the third UE, or
a combination thereof.
21 . The UE of claim 1 , wherein the PC5 signaling corresponds to a direct link between the UE and the other UE.
22 . The UE of claim 1 , wherein the capability information associated with the UE further indicates at least one of a velocity sensor error or a calibration error.
23 . The UE of claim 1 , wherein the first S-LMC and the second S-LMC comprise sub-functions associated with a vehicle-to-everything (V2X) protocol layer.
24 . The UE of claim 1 , wherein the positioning report comprises the indication of the position of the UE based at least in part on a determination by a sidelink location management function (S-LMF).
25 . A user equipment (UE) for wireless communication, comprising:
one or more transceivers;
a memory; and
one or more processors coupled to the one or more transceivers and the memory, the memory and the one or more processors configured to:
provide, via the one or more transceivers, a capability request from another UE, wherein the capability request is associated with one or more positioning measurements that the UE is capable of performing;
receive, from the other UE via the one or more transceivers, capability information associated with the other UE, wherein the capability information associated with the other UE indicates the one or more positioning measurements that the other UE is capable of performing;
receive, from the other UE via the one or more transceivers, a positioning request associated with a procedure for determining a position of the other UE, wherein the positioning request comprises a sidelink communication, performed using PC5 signaling, between a first sidelink location management component (S-LMC) of the UE and a second S-LMC of the other UE;
receive, from a sidelink location management function (S-LMF) via the one or more transceivers, a positioning report associated with the procedure for determining the position of the other UE, wherein the positioning report comprises an indication of the position of the UE; and
transmit, via the one or more transceivers, the positioning report to the other UE.
26 . The UE of claim 25 ,
wherein each of the first S-LMC and the second S-LMC supports at least one of:
a capability request operation,
a capability response operation,
an assistance data receipt operation,
an assistance data provision operation,
a measurement operation,
a measurement receipt operation,
a first location determination operation associated with the UE,
a second location determination operation associated with the other UE, or
a combination thereof.
27 . The UE of claim 25 ,
wherein the UE is associated with a vehicle or a roadside unit.
28 . The UE of claim 25 ,
wherein the other UE is associated with a vehicle.
29 . The UE of claim 25 ,
wherein the one or more processors are further configured to:
transmit, via the one or more transceivers, a set of assistance data to the other UE, wherein the set of assistance data comprises a set of positioning reference signal (PRS) configuration information associated with at least one of:
the UE,
the other UE, or
a combination thereof.
30 . The UE of claim 29 ,
wherein the one or more processors are further configured to:
transmit, via the one or more transceivers, an outgoing PRS based at least in part on the set of assistance data; and
receive, from the other UE via the one or more transceivers, at least one of:
a positioning measurement based at least in part on the outgoing PRS,
an error associated with the positioning measurement, or
a combination thereof.
31 . The UE of claim 29 ,
wherein the one or more processors are further configured to:
receive, from the other UE via the one or more transceivers, an incoming PRS based at least in part on the set of assistance data, wherein the incoming PRS is to facilitate a positioning measurement obtained by the UE and associated with the other UE;
determine a positioning measurement based at least in part on the incoming PRS; and
transmit, to the other UE via the one or more transceivers, at least one of:
the positioning measurement,
an error associated with the positioning measurement, or
a combination thereof.
32 . The UE of claim 29 ,
wherein the one or more processors are further configured to transmit, to the S-LMF via the one or more transceivers, at least one of:
the set of assistance data,
a first positioning measurement obtained by the UE,
an error associated with the first positioning measurement,
a second positioning measurement received from the other UE,
an error associated with the second positioning measurement, or
a combination thereof.
33 . The UE of claim 32 ,
wherein the S-LMF is provided by a V2X application server, and
wherein the UE communicates with the S-LMF via a V1 interface.
34 . The UE of claim 32 ,
wherein the S-LMF is provided by a wireless core network, and
wherein the UE communicates with the S-LMF via a long term evolution positioning protocol.
35 . The UE of claim 25 ,
wherein the one or more processors are further configured to:
receive, via the one or more transceivers, a vehicle positioning measurement from the other UE, wherein the vehicle positioning measurement is based at least in part on a sensor associated with a vehicle corresponding to the other UE; and
transmit, to the S-LMF via the one or more transceivers, the vehicle positioning measurement.
36 . The UE of claim 35 ,
wherein the sensor comprises a wheel sensor.
37 . The UE of claim 35 ,
wherein the vehicle positioning measurement comprises velocity information.
38 . The UE of claim 25 , wherein the PC5 signaling corresponds to a direct link between the UE and the other UE.
39 . The UE of claim 25 , wherein the capability information associated with the UE further indicates at least one of a velocity sensor error or a calibration error.
40 . A method of wireless communication performed by a user equipment (UE), comprising:
receiving a capability request from another UE, wherein the capability request is associated with one or more positioning measurements that the UE is capable of performing;
providing, to the other UE, capability information associated with the UE, wherein the capability information associated with the UE indicates the one or more positioning measurements that the UE is capable of performing;
transmitting, to the other UE, a positioning request associated with a procedure for determining a position of the UE, wherein the positioning request comprises a sidelink communication, performed using PC5 signaling, between a first sidelink location management component (S-LMC) of the UE and a second S-LMC of the other UE; and
receiving a positioning report associated with the procedure for determining the position of the UE, wherein the positioning report comprises an indication of the position of the UE.
41 . The method of claim 40 ,
wherein each of the first S-LMC and the second S-LMC supports at least one of:
a capability request operation,
a capability response operation,
an assistance data receipt operation,
an assistance data provision operation,
a measurement operation,
a measurement receipt operation,
a first location determination operation associated with the UE,
a second location determination operation associated with the other UE, or
a combination thereof.
42 . The method of claim 40 ,
wherein the UE is associated with a vehicle.
43 . The method of claim 40 ,
wherein the other UE is associated with a vehicle or a roadside unit.
44 . The method of claim 40 , further comprising:
receiving a set of assistance data from the other UE, wherein the set of assistance data comprises a set of positioning reference signal (PRS) configuration information associated with at least one of:
the UE,
the other UE, or
a combination thereof.
45 . The method of claim 44 , further comprising:
receiving an incoming PRS based at least in part on the set of assistance data;
obtaining a positioning measurement based at least in part on the incoming PRS; and
transmitting, to the other UE, at least one of:
the positioning measurement,
an error associated with the positioning measurement, or
a combination thereof.
46 . The method of claim 44 , further comprising:
transmitting, to the other UE, an outgoing PRS based at least in part on the set of assistance data, wherein the outgoing PRS is to facilitate a positioning measurement obtained by the other UE; and
receiving, from the other UE, at least one of:
the positioning measurement,
an error associated with the positioning measurement, or
a combination thereof.
47 . The method of claim 44 , further comprising
transmitting, to a sidelink location management function (S-LMF), at least one of:
the set of assistance data,
a first positioning measurement obtained by the UE,
an error associated with the first positioning measurement,
a second positioning measurement received from the other UE,
an error associated with the second positioning measurement, or
a combination thereof.
48 . The method of claim 47 ,
wherein the S-LMF is provided by a V2X application server, and
wherein the UE communicates with the S-LMF via a V1 interface.
49 . The method of claim 47 ,
wherein the S-LMF is provided by a wireless core network, and
wherein the UE communicates with the S-LMF via a long term evolution positioning protocol.
50 . The method of claim 40 , further comprising:
receiving a vehicle positioning measurement from a sensor associated with a vehicle corresponding to the UE; and
transmitting, to a sidelink location management function (S-LMF), the vehicle positioning measurement.
51 . The method of claim 50 ,
wherein the sensor comprises a wheel sensor.
52 . The method of claim 50 ,
wherein the vehicle positioning measurement comprises velocity information.
53 . The method of claim 40 , further comprising:
transmitting an additional positioning request to a third UE, wherein the additional positioning request comprises an additional sidelink communication between the first S-LMC of the UE and a third S-LMC of the third UE.
54 . The method of claim 53 , further comprising:
receiving a first capability request from the other UE;
receiving a second capability request from the third UE;
providing, to the other UE, capability information associated with the UE; and
providing, to the third UE, the capability information associated with the UE.
55 . The method of claim 53 , further comprising:
receiving a first set of assistance data from the other UE; and
receiving a second set of assistance data from the third UE.
56 . The method of claim 55 ,
wherein the first set of assistance data comprises positioning reference signal (PRS) configuration information associated with at least one of the UE, the other UE, or a combination thereof, and
wherein the second set of assistance data comprises PRS configuration information associated with at least one of the UE, the third UE, or a combination thereof.
57 . The method of claim 56 , further comprising:
receiving a first PRS from the other UE based at least in part on the first set of assistance data;
receiving a second PRS from the third UE based at least in part on the second set of assistance data;
obtaining at least one positioning measurement based at least in part on at least one of:
the first PRS,
the second PRS, or
a combination thereof; and
transmitting the at least one positioning measurement to at least one of the other UE, the third UE, or a combination thereof.
58 . The method of claim 56 , further comprising
transmitting at least one of:
a first outgoing PRS based at least in part on the first set of assistance data,
a second outgoing PRS based at least in part on the second set of assistance data, or
a combination thereof.
59 . The method of claim 53 , further comprising:
receiving a vehicle positioning measurement from a sensor associated with a vehicle corresponding to the UE; and
transmitting, to at least one of the other UE, the third UE, or a combination thereof, at least one of:
the vehicle positioning measurement,
an error associated with the vehicle positioning measurement, or
a combination thereof.
60 . The method of claim 59 ,
wherein the sensor comprises a wheel sensor.
61 . The method of claim 59 ,
wherein the vehicle positioning measurement comprises velocity information.
62 . The method of claim 53 ,
wherein the UE receives the positioning report from at least one of:
the other UE,
the third UE, or
a combination thereof.
63 . The method of claim 40 , wherein the PC5 signaling corresponds to a direct link between the UE and the other UE.
64 . A method of wireless communication performed by a user equipment (UE), comprising:
providing a capability request from another UE, wherein the capability request is associated with one or more positioning measurements that the UE is capable of performing;
receiving, from the other UE, capability information associated with the other UE, wherein the capability information associated with the other UE indicates
one or more positioning measurements that the other UE is capable of performing;
receiving, from the other UE, a positioning request associated with a procedure for determining a position of the other UE, wherein the positioning request comprises a sidelink communication, performed using PC5 signaling, between a first sidelink location management component (S-LMC) of the UE and a second S-LMC of the other UE;
receiving, from a sidelink location management function (S-LMF), a positioning report associated with the procedure for determining the position of the other UE, wherein the positioning report comprises an indication of the position of the UE; and
transmitting the positioning report to the other UE.
65 . The method of claim 64 ,
wherein each of the first S-LMC and the second S-LMC supports at least one of:
a capability request operation,
a capability response operation,
an assistance data receipt operation,
an assistance data provision operation,
a measurement operation,
a measurement receipt operation,
a first location determination operation associated with the UE,
a second location determination operation associated with the other UE, or
a combination thereof.
66 . The method of claim 64 ,
wherein the UE is associated with a vehicle or a roadside unit.
67 . The method of claim 64 ,
wherein the other UE is associated with a vehicle.
68 . The method of claim 64 , further comprising:
transmitting a set of assistance data to the other UE, wherein the set of assistance data comprises a set of positioning reference signal (PRS) configuration information associated with at least one of:
the UE,
the other UE, or
a combination thereof.
69 . The method of claim 68 , further comprising:
transmitting an outgoing PRS based at least in part on the set of assistance data; and
receiving, from the other UE, at least one of:
a positioning measurement based at least in part on the outgoing PRS,
an error associated with the positioning measurement, or
a combination thereof.
70 . The method of claim 68 , further comprising:
receiving, from the other UE, an incoming PRS based at least in part on the set of assistance data, wherein the incoming PRS is to facilitate a positioning measurement obtained by the UE and associated with the other UE;
determining a positioning measurement based at least in part on the incoming PRS; and
transmitting, to the other UE, at least one of:
the positioning measurement,
an error associated with the positioning measurement, or
a combination thereof.
71 . The method of claim 68 , further comprising
transmitting, to the S-LMF, at least one of:
the set of assistance data,
a first positioning measurement obtained by the UE,
an error associated with the first positioning measurement,
a second positioning measurement received from the other UE,
an error associated with the second positioning measurement, or
a combination thereof.
72 . The method of claim 71 ,
wherein the S-LMF is provided by a V2X application server, and
wherein the UE communicates with the S-LMF via a VI interface.
73 . The method of claim 71 ,
wherein the S-LMF is provided by a wireless core network, and
wherein the UE communicates with the S-LMF via a long term evolution positioning protocol.
74 . The method of claim 64 , further comprising:
receiving a vehicle positioning measurement from the other UE, wherein the vehicle positioning measurement is based at least in part on a sensor associated with a vehicle corresponding to the other UE; and
transmitting, to the S-LMF, the vehicle positioning measurement.
75 . The method of claim 74 ,
wherein the sensor comprises a wheel sensor.
76 . The method of claim 74 ,
wherein the vehicle positioning measurement comprises velocity information.
77 . The method of claim 64 , wherein the PC5 signaling corresponds to a direct link between the UE and the other UE.