Systems and methods for locating a user equipment using generic position methods for a 5G network
Techniques are disclosed in which generic position methods in a wireless network allow positioning of a target user equipment (UE) that is served by any one (or more) of a number of different Radio Access Technologies (RATs) and that allow measurements by the UE of access nodes belonging to different RATs and/or measurements of the UE by access nodes for different RATs. With a generic position method, a common set of procedures, messages, and parameters may be defined that are applicable to multiple RATs and that do not require a location server to know in advance the serving RAT for a target UE.
1. A method of locating a user equipment (UE) at a location server in a wireless network, the method comprising:
sending, to a wireless entity, a first message comprising a request for a first set of location measurements for determining a location of the UE, wherein:
the first set of location measurements comprises measurements of signals belonging to a plurality of Radio Access Technologies (RATs),
the plurality of RATs includes a serving RAT serving the UE, and
which RAT, of the plurality of RATs, comprises the serving RAT is unknown to the location server;
receiving a second message from the wireless entity, the second message comprising a second set of location measurements for determining the location of the UE, wherein:
the second set of location measurements comprises a subset of the first set of location measurements, and
the second set of location measurements includes measurements of signals belonging to the serving RAT; and
determining the location of the UE based on the second set of location measurements.
2. The method of claim 1 , wherein the plurality of RATs comprises a Fifth Generation (5G) New Radio (NR) RAT, a Long Term Evolution (LTE) RAT, an IEEE 802.11 WiFi RAT, a Bluetooth RAT, or any combination thereof.
3. The method of claim 2 , wherein the wireless entity comprises a first access node for the wireless network for the serving RAT.
4. The method of claim 3 , wherein the first message and the second message comprise messages for an NR Positioning Protocol A (NRPPa).
5. The method of claim 3 , wherein:
the second set of location measurements comprise location measurements, obtained by the UE, of signals transmitted by the first access node using the serving RAT, and
the location measurements obtained by the UE are sent to the first access node by the UE.
6. The method of claim 3 , wherein:
the second set of location measurements comprise location measurements, obtained by the UE, of signals transmitted by a second access node using at least one of the plurality of RATs,
the second access node is different than the first access node, and
the location measurements obtained by the UE are sent to the first access node by the UE.
7. A server for locating a user equipment (UE) in a wireless network, the server comprising:
a communication interface;
a memory; and
one or more processing units communicatively coupled with the memory and the communication interface, wherein the one or more processing units are configured to cause the server to:
send, via the communication interface to a wireless entity, a first message comprising a request for a first set of location measurements for determining a location of the UE, wherein:
the first set of location measurements comprises measurements of signals belonging to a plurality of Radio Access Technologies (RATs),
the plurality of RATs includes a serving RAT serving the UE, and
which RAT, of the plurality of RATs, comprises the serving RAT is unknown to the server;
receive, via the communication interface, a second message from the wireless entity, the second message comprising a second set of location measurements for determining the location of the UE, wherein:
the second set of location measurements comprises a subset of the first set of location measurements, and
the second set of location measurements includes measurements of signals belonging to the serving RAT; and
determine the location of the UE based on the second set of location measurements.
8. The server of claim 7 , wherein the plurality of RATs comprises a Fifth Generation (5G) New Radio (NR) RAT, a Long Term Evolution (LTE) RAT, an IEEE 802.11 WiFi RAT, a Bluetooth RAT, or any combination thereof.
9. The server of claim 8 , wherein the wireless entity comprises a first access node for the wireless network for the serving RAT.
10. The server of claim 9 , wherein the first message and the second message comprise messages for an NR Positioning Protocol A (NRPPa).
11. The server of claim 9 , wherein:
the second set of location measurements comprise location measurements, obtained by the UE, of signals transmitted by the first access node using the serving RAT, and
the location measurements obtained by the UE are sent to the first access node by the UE.
12. The server of claim 9 , wherein:
the second set of location measurements comprise location measurements, obtained by the UE, of signals transmitted by a second access node using at least one of the plurality of RATs,
the second access node is different than the first access node, and
the location measurements obtained by the UE are sent to the first access node by the UE.