Method and/or system for positioning of a mobile device
Methods and systems are disclosed for providing location services for user equipment (UE) devices in a radio access network (RAN) such as a Fifth Generation (5G) RAN. Location services may be supported by separate positioning domains that may include a Device to Device domain, a RAN domain and a core network (CN) domain. The RAN domain may include a location server function (LSF) that may support positioning services autonomously within the RAN or in collaboration with a D2D or CN domain. The CN domain may include a location server (LS) that may support control plane and/or user plane location. The RAN domain may enable high volume and low latency location service whereas the CN domain may enable high accuracy service and services for external clients.
1. A method of supporting location services at a user equipment (UE), comprising:
exchanging one or more first signaling messages with a first location server associated with a radio access network, the one or more first signaling messages comprising: (i) a first location measurement obtained by the UE, the first location server enabled to determine a location estimate of the UE based at least in part on the first location measurement; (ii) a request received by the UE for the first location measurement; (iii) first assistance data received by the UE, the first assistance data assisting the UE to obtain the first location measurement; or (iv) a combination thereof, wherein the first location server comprises a standalone entity and the one or more first signaling messages are exchanged via an intermediate base station, the one or more first signaling messages undergoing protocol conversion at the intermediate base station; and
exchanging one or more second signaling messages with a second location server associated with a core network, the one or more second signaling message comprising a second location measurement obtained by the UE, a request received by the UE for the second location measurement, second assistance data received by the UE, the second assistance data assisting the UE to obtain the second location measurement, or a combination thereof.
2. The method of claim 1 , wherein the one or more first messages comprise one or more one or more layer 3 messages, and wherein the one or more second signaling messages comprise one or more control plane messages or one or more user plane messages.
3. The method of claim 1 , wherein one or more first signaling messages are exchanged in part using a Fifth Generation (5G) radio interface or a 3 rd Generation Partnership Project (3GPP) New Radio (NR).
4. The method of claim 1 , wherein at least one of the first location measurement and the second location measurement is a measurement of received signal strength indication (RSSI), angle of arrival (AOA), round trip signal propagation time (RTT), reference signal time difference (RSTD), signal to noise ratio (S/N), reference signal received power (RSRP), reference signal received quality (RSRQ), a code phase for a satellite vehicle (SV), a carrier phase for an SV or the location estimate for the UE.
5. The method of claim 1 , wherein the first assistance data is received by the UE by receiving a broadcast signal.
6. The method of claim 1 , wherein one or more second signaling messages are defined according to Long Term Evolution (LTE) Positioning Protocol (LPP) protocol for 3 rd Generation Partnership Project (3GPP), LPP Extensions (LPPe) protocol defined by Open Mobile Alliance (OMA), or both LPP and LPPe.
7. A user equipment (UE) to support location services, comprising:
a wireless transceiver to transmit signaling messages to and receive signaling messages from a communication network; and
one or more processors configured to:
exchange one or more first signaling messages with a first location server associated with a radio access network through the wireless transceiver, the one or more first signaling messages comprising: (i) a first location measurement obtained by the UE, the first location server enabled to determine a location estimate of the UE based at least in part on the first location measurement; (ii) a request received by the UE for the first location measurement; (iii) first assistance data received by the UE, the first assistance data assisting the UE to obtain the first location measurement; or (iv) a combination thereof, wherein the first location server comprises a standalone entity and the one or more first signaling messages are exchanged via an intermediate base station, the one or more first signaling messages undergoing protocol conversion at the intermediate base station; and
exchange one or more second signaling messages with a second location server associated with a core network through the wireless transceiver, the one or more second signaling message comprising a second location measurement obtained by the UE, a request received by the UE for the second location measurement, second assistance data received by the UE, the second assistance data assisting the UE to obtain the second location measurement, or a combination thereof.
8. The UE of claim 7 , wherein the first assistance data is received by the UE by receiving a broadcast signal.
9. A user equipment (UE) to support location services, comprising:
means for transmitting signaling messages to and receiving signaling messages from a communication network; and
means for exchanging one or more first signaling messages with a first location server associated with a radio access network through the wireless transceiver, wherein the radio access network comprises a first positioning domain to utilize a first protocol, the one or more first signaling messages comprising: (i) a first location measurement obtained by the UE, the first location server enabled to determine a location estimate of the UE based at least in part on the first location measurement; (ii) a request received by the UE for the first location measurement; (iii) first assistance data received by the UE, the first assistance data assisting the UE to obtain the first location measurement; or (iv) a combination thereof, wherein the first location server comprises a standalone entity and the one or more first signaling messages are exchanged via an intermediate base station, the one or more first signaling messages undergoing protocol conversion at the intermediate base station; and
means for exchanging one or more second signaling messages with a second location server associated with a core network through the wireless transceiver, wherein the core network comprises a second positioning domain to utilize a second protocol distinct from the first protocol, the one or more second signaling message comprising a second location measurement obtained by the UE, a request received by the UE for the second location measurement, second assistance data received by the UE, the second assistance data assisting the UE to obtain the second location measurement, or a combination thereof.
10. The UE of claim 9 , wherein the one or more first messages comprise one or more one or more layer 3 messages, and wherein the one or more second signaling messages comprise one or more control plane messages or one or more user plane messages.
11. An article comprising: a non-transitory computer-readable medium comprising machine-readable instructions stored thereon which are executable by a processor to:
initiate exchange of one or more first signaling messages between a user equipment (UE) and a first location server associated with a radio access network, wherein the radio access network comprises a first positioning domain to utilize a first protocol, the one or more first signaling messages comprising: (i) a first location measurement obtained by the UE, the first location server enabled to determine a location estimate of the UE based at least in part on the first location measurement; (ii) a request received by the UE for the first location measurement; (iii) first assistance data received by the UE, the first assistance data assisting the UE to obtain the first location measurement; or (iv) a combination thereof, wherein the first location server comprises a standalone entity and the one or more first signaling messages are exchanged via an intermediate base station, the one or more first signaling messages undergoing protocol conversion at the intermediate base station; and
initiate exchange of one or more second signaling messages between the UE and a second location server associated with a core network, wherein the core network comprises a second positioning domain to utilize a second protocol distinct from the first protocol, the one or more second signaling message comprising a second location measurement obtained by the UE, a request received by the UE for the second location measurement, second assistance data received by the UE, the second assistance data assisting the UE to obtain the second location measurement, or a combination thereof.
12. The article of claim 11 , wherein the one or more first messages comprise one or more one or more layer 3 messages, and wherein the one or more second signaling messages comprise one or more control plane messages or one or more user plane messages.
13. The article of claim 11 , wherein at least one of the first location measurement and the second location measurement is a measurement of received signal strength indication (RSSI), angle of arrival (AOA), round trip signal propagation time (RTT), reference signal time difference (RSTD), signal to noise ratio (S/N), reference signal received power (RSRP), reference signal received quality (RSRQ), a code phase for a satellite vehicle (SV), a carrier phase for an SV or the location estimate for the UE.