Co-existence between positioning beams and radio communication beams
Embodiments include methods performed by a user equipment (UE) of associating positioning signals with beams transmitted in a wireless network that includes a location server and a base station. Such methods include receiving assistance data from the location server. The assistance data includes a configuration of positioning signals to be transmitted by the wireless network and information identifying at least one relationship between the following: one or more positioning beams that carry the positioning signals, and one or more radio resource management (RRM) beams that carry RRM signals. Such methods include receiving, from the base station, the positioning signals via the one or more positioning beams based on the at least one relationship between the positioning beam(s) and the RRM beam(s). Other embodiments include complementary methods for base stations and location servers, as well as UEs, base stations, and location servers configured to perform such methods.
1. A method, performed by a user equipment (UE), for receiving positioning signals in a wireless network, the method comprising:
receiving, from a location server in the wireless network, assistance data comprising:
a configuration of positioning signals to be transmitted by the wireless network; and
information identifying at least one quasi-colocation (QCL) relationship between the positioning signals and
one or more radio resource management (RRM) signals; and
receiving, from a base station in the wireless network, the positioning signals based on the at least one QCL relationship between the positioning signals and the one or more RRM signals.
2. The method of claim 1 , wherein
the one or more RRM signals comprise respective synchronization signal and physical broadcast control channel blocks (SSBs).
3. The method of claim 1 , wherein the information identifying the at least one QCL relationship comprises indices of one or more RRM beams corresponding to the one or more RRM signals.
4. The method of claim 1 , wherein the assistance data is received from the location server via Long Term Evolution (LTE) Positioning Protocol (LPP) signaling.
5. The method of claim 1 , wherein the configuration of the positioning signals includes one or more of the following: association with a cell in the wireless network, direction, frequency range, frequency bandwidth, time duration, and periodicity.
6. A User Equipment (UE) configured to receive positioning signals in a wireless network comprising a location server and a base station, the UE comprising:
a processor; and
a memory storing instructions that, when executed by the processor, cause the UE to perform operations corresponding to the method of claim 1 .
7. A method performed by a base station in a wireless network, the method comprising:
sending, to a location server in the wireless network, information identifying at least one quasi-colocation (QCL) relationship between:
positioning signals to be transmitted by the wireless network, and
one or more radio resource management (RRM) signals; and
transmitting the positioning signals to one or more user equipment (UEs) operating in the wireless network.
8. The method of claim 7 , wherein the information identifying the at least one QCL relationship comprises indices of one or more RRM beams corresponding to the one or more RRM signals.
9. The method of claim 7 , further comprising transmitting the one or more RRM signals, wherein the positioning signals are transmitted in accordance with the at least one QCL relationship between the positioning signals and the one or more RRM signals.
10. The method of claim 7 , wherein the information identifying the at least one QCL relationship is sent by the base station to the location server using NR Positioning Protocol A (NRPPa) signaling.
11. A base station configured for operation in a wireless network, the base station comprising:
network interface circuitry configured to communicate with a location server in the wireless network; and
processing circuitry operably coupled to the network interface circuitry, whereby the network interface circuitry and processing circuitry are configured to perform operations corresponding to the method of claim 7 .
12. A method performed by a location server in a wireless network, the method comprising:
receiving, from a base station in the wireless network, information identifying at least one quasi-colocation (QCL) relationship between:
positioning signals to be transmitted by the wireless network; and
one or more radio resource management (RRM) signals; and
sending, to one or more user equipment (UEs) in the wireless network, assistance data comprising:
a configuration of the positioning signals to be transmitted by the wireless network; and
the information identifying the at least one QCL relationship between the positioning signals and the one or more RRM signals.
13. The method of claim 12 , wherein the configuration of the positioning signals includes one or more of the following: association with a cell in the wireless network, direction, frequency range, frequency bandwidth, time duration, and periodicity.
14. The method of claim 12 , wherein the assistance data is sent by the location server to the one or more UEs via Long Term Evolution (LTE) Positioning Protocol (LPP) signaling.
15. A location server configured for operation in a wireless network, the location server comprising:
network interface circuitry configured to communicate with a base station in the wireless network; and
processing circuitry operably coupled to the network interface circuitry, whereby the network interface circuitry and processing circuitry are configured to perform operations corresponding to the methods of claim 12 .