Systems and methods of providing new radio positioning
Systems and methods are provided to determine an estimated location of a user equipment (UE). For instance, a UE can provide a positioning request to a node while the UE is in a radio resource control idle (RRC_IDLE) or inactive (RRC_INACTIVE) state. The positioning request can be implemented in a random access channel (RACH) message A (MsgA). The UE can then receive a positioning response from the node. The positioning response can be implemented in a RACH message B (MsgB).
1. A base station in a wireless network, comprising:
one or more processors configured to:
receive a positioning request from a user equipment (UE), the positioning request implemented in a random access channel (RACH) message A (MsgA);
provide an uplink (UL) positioning reference signal (PRS) resource configuration to the UE;
receive UL PRS data from the UE based at least in part on the UL PRS resource configuration; and
provide a positioning response to the UE, the positioning response implemented in a RACH message B (MsgB),
wherein the UL PRS data is received from the UE prior to the providing of the positioning response.
2. The base station of claim 1 , wherein the RACH MsgA comprises a physical random access channel (PRACH) preamble.
3. The base station of claim 1 , wherein the RACH MsgA comprises at least one of a requested type of positioning procedure, a request for additional allocation of reference signals, one or more signal location parameter measurements, a UE identification, and a requested type of positioning reference resources.
4. The base station of claim 1 , wherein a requested type of positioning procedure comprises a downlink (DL) only positioning technique, a UL only positioning technique, or a DL and UL positioning technique.
5. The base station of claim 1 , wherein the positioning response comprises an estimated coordinate of the UE, a metric characterizing coordinate estimation quality, timestamps indicative of a time of reception of one or more reference signals, a request for additional positioning measurements, a configuration or activation of additional resources for transmission of positioning reference signals, or location information associated with downlink (DL) positioning reference resources.
6. The base station of claim 1 , wherein the RACH MsgB comprises at least one of an estimated location of the UE, a metric characterizing a quality or uncertainty of the estimated location, a timestamp indicating a time of reception of the RACH MsgA by the base station, a timestamp indicating a time of transmission of the RACH MsgB by the base station, a request for additional positioning measurements, or location information associated with downlink (DL) positioning reference resources.
7. The base station of claim 6 , wherein the estimated location of the UE is determined by a location function entity, and provided to the base station.
8. The base station of claim 1 , wherein the UL PRS resource configuration is implemented in a second RACH MsgB or through upper layer signaling.
9. A method for determining an estimated location of a user equipment (UE) in a wireless network, the method comprising:
receiving, by a base station in the wireless network, a positioning request from a UE, the positioning request implemented in a random access channel (RACH) message A (MsgA);
providing, by the base station, an uplink (UL) positioning reference signal (PRS) resource configuration to the UE;
receiving, by the base station, UL PRS data from the UE based at least in part on the UL PRS resource configuration; and
providing, by the base station, a positioning response to the UE, the positioning response implemented in a RACH message B (MsgB),
wherein the UL PRS data is received from the UE prior to the providing of the positioning response.
10. The method of claim 9 , wherein the RACH MsgA comprises a physical random access channel (PRACH) preamble.
11. The method of claim 9 , wherein the RACH MsgA comprises at least one of a requested type of positioning procedure, a request for additional allocation of reference signals, one or more signal location parameter measurements, a UE identification, and a requested type of positioning reference resources.
12. The method of claim 9 , wherein a requested type of positioning procedure comprises a downlink (DL) only positioning technique, a UL only positioning technique, or a DL and UL positioning technique.
13. The method of claim 9 , wherein the positioning response comprises an estimated coordinate of the UE, a metric characterizing coordinate estimation quality, timestamps indicative of a time of reception of one or more reference signals, a request for additional positioning measurements, a configuration or activation of additional resources for transmission of positioning reference signals, or location information associated with downlink (DL) positioning reference resources.
14. The method of claim 9 , wherein the UL PRS resource configuration is implemented in a second RACH MsgB or through upper layer signaling.
15. One or more non-transitory computer-readable media (CRM) comprising instructions to, upon execution of the instructions by one or more processors of a base station in a wireless network, cause the base station to:
receive a positioning request from a user equipment (UE), the positioning request implemented in a random access channel (RACH) message A (MsgA);
provide an uplink (UL) positioning reference signal (PRS) resource configuration to the UE;
receive UL PRS data from the UE based at least in part on the UL PRS resource configuration; and
provide a positioning response to the UE, the positioning response implemented in a RACH message B (MsgB),
wherein the UL PRS data is received from the UE prior to the providing of the positioning response.
16. The one or more non-transitory CRM of claim 15 , wherein the RACH MsgB comprises at least one of an estimated location of the UE, a metric characterizing a quality or uncertainty of the estimated location, a timestamp indicating a time of reception of the RACH MsgA by the base station, a timestamp indicating a time of transmission of the RACH MsgB by the base station, a request for additional positioning measurements, or location information associated with downlink (DL) positioning reference resources.
17. The one or more non-transitory CRM of claim 15 , wherein the UL PRS resource configuration is implemented in a second RACH MsgB or through upper layer signaling.
18. The one or more non-transitory CRM of claim 15 , wherein the positioning response comprises an estimated coordinate of the UE, a metric characterizing coordinate estimation quality, timestamps indicative of a time of reception of one or more reference signals, a request for additional positioning measurements, a configuration or activation of additional resources for transmission of positioning reference signals, or location information associated with downlink (DL) positioning reference resources.
19. The one or more non-transitory CRM of claim 15 , wherein the RACH MsgA comprises at least one of a requested type of positioning procedure, a request for additional allocation of reference signals, one or more signal location parameter measurements, a UE identification, and a requested type of positioning reference resources.
20. The one or more non-transitory CRM of claim 15 , wherein the RACH MsgA comprises a physical random access channel (PRACH) preamble.