Signaling for high-altitude platform positioning
Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) receives, from a network entity, a request capabilities message for a positioning session between the UE and the network entity, transmits, to the network entity, in response to reception of the request capabilities message, a provide capabilities message during the positioning session, and transmits, to the network entity, a request assistance data message during the positioning session, the request assistance data message, the provide capabilities message, or both including sensor measurement information, sensor motion information, or both.
1 . A method of wireless communication performed by a user equipment (UE), comprising:
receiving, from a network entity, a request capabilities message for a positioning session between the UE and the network entity;
transmitting, to the network entity, in response to reception of the request capabilities message, a provide capabilities message during the positioning session;
transmitting, to the network entity, a request assistance data message during the positioning session, the request assistance data message, the provide capabilities message, or both including sensor measurement information, sensor motion information, or both, wherein the sensor measurement information, the sensor motion information, or both are fields in a positioning method-specific request assistance data information element (IE) in the request assistance data message, a positioning method-specific provide capabilities IE in the provide capabilities message, or both; and
receiving, from the network entity, assistance data for the positioning session, the assistance data based on the sensor measurement information, the sensor motion information, or both.
2 . The method of claim 1 , wherein the sensor measurement information, the sensor motion information, or both are common to all types of positioning methods associated with the positioning session.
3 . The method of claim 1 , wherein the sensor measurement information, the sensor motion information, or both are specific to each type of positioning method associated with the positioning session.
4 . The method of claim 1 , wherein:
the request capabilities message includes a request for sensor measurement information, a request for sensor motion information, or both, and
at least the provide capabilities message includes the sensor measurement information, the sensor motion information, or both.
5 . The method of claim 4 , wherein the request for sensor measurement information, the request for sensor motion information, or both are common to all types of positioning methods associated with the positioning session.
6 . The method of claim 5 , wherein the request for sensor measurement information, the request for sensor motion information, or both are fields in a request capabilities IE in the request capabilities message.
7 . The method of claim 5 , wherein the request for sensor measurement information, the request for sensor motion information, or both are fields in a common IEs request capabilities IE in the request capabilities message.
8 . The method of claim 4 , wherein the request for sensor measurement information, the request for sensor motion information, or both are specific to each type of positioning method associated with the positioning session.
9 . The method of claim 8 , wherein the request for sensor measurement information, the request for sensor motion information, or both are fields in a positioning method-specific request capabilities IE in the request capabilities message.
10 . The method of claim 4 , wherein the request for sensor measurement information includes an uncertainty range for the sensor measurement information, the request for sensor motion information includes an uncertainty range for the sensor motion information, or both.
11 . The method of claim 1 , wherein:
the sensor measurement information comprises an altitude measurement obtained by the UE, and
the UE is, or is coupled to, a high-altitude platform.
12 . The method of claim 1 , wherein:
the network entity is a location server,
the request capabilities message is a Long-Term Evolution (LTE) positioning protocol Request Capabilities message,
the request assistance data message is an LPP Request Assistance Data message, and
the provide capabilities message is an LPP Provide Capabilities message.
13 . The method of claim 1 , wherein:
the network entity is a serving base station of the UE,
the request assistance data message and the provide capabilities message are radio resource control (RRC) messages, medium access control control elements (MAC-CEs), uplink control information (UCI), or any combination thereof, and
the request capabilities message is one or more RRC messages, one or more MAC-CEs, downlink control information (DCI), or any combination thereof.
14 . A method of communication performed by a network entity, comprising:
transmitting, to a user equipment (UE), a request capabilities message for a positioning session between the UE and the network entity;
receiving, from the UE, in response to transmission of the request capabilities message, a provide capabilities message during the positioning session;
receiving, from the UE, a request assistance data message during the positioning session, the request assistance data message, the provide capabilities message, or both including sensor measurement information, sensor motion information, or both, wherein the sensor measurement information, the sensor motion information, or both are fields in a positioning method-specific request assistance data information element (IE) in the request assistance data message, a positioning method-specific provide capabilities IE in the provide capabilities message, or both; and
transmitting, to the UE, assistance data for the positioning session, the assistance data based on the sensor measurement information, the sensor motion information, or both.
15 . The method of claim 14 , wherein:
the request capabilities message includes a request for sensor measurement information, a request for sensor motion information, or both, and
at least the provide capabilities message includes the sensor measurement information, the sensor motion information, or both.
16 . The method of claim 14 , wherein:
the network entity is a location server,
the request capabilities message is a Long-Term Evolution (LTE) positioning protocol Request Capabilities message,
the request assistance data message is an LPP Request Assistance Data message, and
the provide capabilities message is an LPP Provide Capabilities message.
17 . The method of claim 14 , wherein:
the network entity is a serving base station of the UE,
the request assistance data message and the provide capabilities message are radio resource control (RRC) messages, medium access control control elements (MAC-CEs), uplink control information (UCI), or any combination thereof, and
the request capabilities message is one or more RRC messages, one or more MAC-CEs, downlink control information (DCI), or any combination thereof.
18 . A user equipment (UE), comprising:
one or more memories;
one or more transceivers; and
one or more processors communicatively coupled to the memory and the at least one or more transceivers, the one or more processors, either alone or in combination, configured to:
receive, via the one or more transceivers, from a network entity, a request capabilities message for a positioning session between the UE and the network entity;
transmit, via the one or more transceivers, to the network entity, in response to reception of the request capabilities message, a provide capabilities message during the positioning session;
transmit, via the one or more transceivers, to the network entity, a request assistance data message during the positioning session, the request assistance data message, the provide capabilities message, or both including sensor measurement information, sensor motion information, or both, wherein the sensor measurement information, the sensor motion information, or both are fields in a positioning method-specific request assistance data information element (IE) in the request assistance data message, a positioning method-specific provide capabilities IE in the provide capabilities message, or both; and
receive, via the one or more transceivers, from the network entity, assistance data for the positioning session, the assistance data based on the sensor measurement information, the sensor motion information, or both.
19 . The UE of claim 18 , wherein the sensor measurement information, the sensor motion information, or both are common to all types of positioning methods associated with the positioning session.
20 . The UE of claim 18 , wherein the sensor measurement information, the sensor motion information, or both are specific to each type of positioning method associated with the positioning session.
21 . The UE of claim 18 , wherein:
the sensor measurement information comprises an altitude measurement obtained by the UE, and
the UE is, or is coupled to, a high-altitude platform.
22 . The UE of claim 18 , wherein:
the network entity is a location server,
the request capabilities message is a Long-Term Evolution (LTE) positioning protocol Request Capabilities message,
the request assistance data message is an LPP Request Assistance Data message, and
the provide capabilities message is an LPP Provide Capabilities message.
23 . The UE of claim 18 , wherein:
the network entity is a serving base station of the UE,
the request assistance data message and the provide capabilities message are radio resource control (RRC) messages, medium access control control elements (MAC-CEs), uplink control information (UCI), or any combination thereof, and
the request capabilities message is one or more RRC messages, one or more MAC-CEs, downlink control information (DCI), or any combination thereof.
24 . A network entity, comprising:
one or more memories;
one or more transceivers; and
one or more processors communicatively coupled to the one or more memories and the one or more transceivers, the one or more processors, either alone or in combination, configured to:
transmit, via the one or more transceivers, to a user equipment (UE), a request capabilities message for a positioning session between the UE and the network entity;
receive, via the one or more transceivers, from the UE, in response to transmission of the request capabilities message, a provide capabilities message during the positioning session;
receive, via the one or more transceivers, from the UE, a request assistance data message during the positioning session, the request assistance data message, the provide capabilities message, or both including sensor measurement information, sensor motion information, or both, wherein the sensor measurement information, the sensor motion information, or both are fields in a positioning method-specific request assistance data information element (IE) in the request assistance data message, a positioning method-specific provide capabilities IE in the provide capabilities message, or both; and
transmit, via the one or more transceivers, to the UE, assistance data for the positioning session, the assistance data based on the sensor measurement information, the sensor motion information, or both.
25 . The network entity of claim 24 , wherein:
the request capabilities message includes a request for sensor measurement information, a request for sensor motion information, or both, and
at least the provide capabilities message includes the sensor measurement information, the sensor motion information, or both.
26 . The network entity of claim 24 , wherein:
the network entity is a location server,
the request capabilities message is a Long-Term Evolution (LTE) positioning protocol Request Capabilities message,
the request assistance data message is an LPP Request Assistance Data message, and
the provide capabilities message is an LPP Provide Capabilities message.
27 . The network entity of claim 24 , wherein:
the network entity is a serving base station of the UE,
the request assistance data message and the provide capabilities message are radio resource control (RRC) messages, medium access control control elements (MAC-CEs), uplink control information (UCI), or any combination thereof, and
the request capabilities message is one or more RRC messages, one or more MAC-CEs, downlink control information (DCI), or any combination thereof.