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US 11,689,892 B2Granted
Approach to use positioning reference signal(s) (PRS(s)) traveling non line-of-sight (NLOS) transmission paths and map information for positioning of user equipments (UEs)
AssigneeQUALCOMM Incorporated
InventorsChang-Sik Choi, Kapil Gulati, Junyi Li, Piyush Gupta
Life of this patent
Estimating the term…
Abstract
A method that may be performed by a UE includes obtaining map information regarding, at least, one or more reflectors in an environment including at least the UE and another node, detecting at least one positioning reference signal (PRS) transmission that travels one or more non line-of-sight (NLOS) transmission paths in the environment, and participating in a positioning procedure that estimates a position of the UE based, at least in part, on the at least one PRS transmission that travels the one or more NLOS transmission paths and the map information.
Claims24
A method for wireless communications by a user equipment (UE), comprising:
- obtaining map information regarding, at least, one or more reflectors in an environment including at least the UE and a node;
- transmitting a positioning reference signal (PRS) transmission, wherein multiple instances of the PRS transmission travel on different transmission paths between the UE and the node;
- receiving an indication of arrival times of the multiple instances of the PRS transmission at the node;
- detecting, based on the arrival times, that one of the multiple instances of the PRS transmission travels a non line-of-sight (NLOS) transmission path in the environment;
- participating in a positioning procedure that estimates a position of the UE based, at least in part, on the one of the multiple instances of the PRS transmission that travels the NLOS transmission path and the map information;
- measuring arrival times of multiple instances of a same PRS transmission received by the UE from the node or another node, wherein the same PRS transmission is received on two or more transmission paths between the UE and the node or the other node;
- and
- broadcasting the arrival times of the multiple instances of the same PRS transmission, based on availability of the map information.
5 more elements
A method for wireless communications by a node, comprising:
- obtaining an indication that map information regarding one or more reflectors in an environment including at least a user equipment (UE) and the node is available to the UE;
- and
- participating in a positioning procedure that estimates a position of the UE, wherein participating in the positioning procedure comprises:
- measuring arrival times of multiple instances of a positioning reference signal (PRS) transmission transmitted from the UE, wherein the multiple instances of the PRS transmission are received on two or more transmission paths between the node and the UE;
- transmitting an indication of the arrival times of the multiple instances of the PRS transmission to the UE;
- transmitting another PRS transmission to the UE;
- and
- receiving a broadcast of arrival times of multiple instances of the other PRS transmission at the UE, based on the map information being available to the node.
5 more elements
An apparatus for wireless communications at a user equipment (UE), comprising:
- memory;
- a transceiver;
- and
- at least one processor communicatively coupled to the memory and the transceiver, the at least one processor configured to:
- obtain map information regarding, at least, one or more reflectors in an environment including at least the apparatus and a node;
- output for transmission a positioning reference signal (PRS) transmission from the UE, wherein multiple instances of the PRS transmission travel on different transmission paths between the UE and the node;
- obtain an indication of arrival times of the multiple instances of the PRS transmission at the node;
- detect, based on the arrival times, that one of the multiple instances of the PRS transmission travels a non line-of-sight (NLOS) transmission path in the environment;
- participate in a positioning procedure that estimates a position of the UE based, at least in part, on the at least one of the multiple instances of the PRS transmission that travels the NLOS transmission path and the map information;
- measure arrival times of multiple instances of a same PRS transmission received by the UE from the node or another node, wherein the same PRS transmission is received on two or more transmission paths between the UE and the node or the other node;
- and
- broadcast the arrival times of the multiple instances of the same PRS transmission, based on availability of the map information.
9 more elements
An apparatus for wireless communications at a node, comprising:
- memory;
- a transceiver;
- and
- at least one processor communicatively coupled to the memory and the transceiver, the at least one processor configured to:
- obtain an indication that map information regarding, at least, one or more reflectors in an environment including at least a user equipment (UE) and the node is available to the UE;
- and
- participate in a positioning procedure that estimates a position of the UE, wherein the processor being configured to participate in the positioning procedure comprises the processor being configured to:
- measure arrival times of multiple instances of a positioning reference signal (PRS) transmission transmitted from the UE, wherein the multiple instances of the PRS transmission are received on two or more transmission paths between the node and the UE;
- and
- output for transmission an indication of the arrival times of the multiple instances of the PRS transmission to the UE;
- output for transmission, to the UE, another PRS transmission;
- and
- obtain a broadcast of arrival times of multiple instances of the other PRS transmission at the UE, based on the map information being available to the node.
10 more elements
Dependencies are inferred from the claim text.