Positioning node, user equipment and methods therein
AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorsIana Siomina, Tao Cui, Muhammad Kazmi
Life of this patent
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Abstract
Methods in a user equipment (UE) for enabling positioning of the UE in a radio communication network having a radio network node and a positioning node. The UE is served in a first cell controlled by the radio network node, and the UE knows or can obtain a system frame number of at least one cell. The UE receives, from the positioning node, a message having positioning assistance data, which includes information associated with the at least one cell for which the system frame number is known or can be obtained by the UE. The UE also performs a positioning measurement using the positioning assistance data and the system frame number of the at least one cell to enable positioning of the UE.
Claims32
A method of enabling positioning of a user equipment (UE) in a radio communication network having a positioning node and a radio network node controlling a first cell serving the UE, in which the UE knows or can obtain a system frame number of at least one cell in the radio communication network, the method comprising:
- receiving, in the UE from the positioning node, a message comprising positioning assistance data that includes information associated with the at least one cell of which the system frame number is known or can be obtained by the UE;
- and
- performing a positioning measurement using the positioning assistance data and the system frame number to enable positioning of the UE;
- wherein the positioning assistance data comprises Observed Time Difference of Arrival (OTDOA) assistance data, and the at least one cell is represented in the OTDOA assistance data either as a reference cell or in a neighbor cell list;
- wherein the positioning measurement is a Reference Signal Time Difference (RSTD) measurement that uses the OTDOA assistance data and the system frame number of the at least one cell to enable positioning of the user equipment;
- wherein the RSTD measurement is a relative received timing difference between a neighbor cell and the reference cell;
- and
- wherein the positioning node is not in a Radio Access Network (RAN) portion of the radio communication network.
A method in a positioning node of enabling positioning of a user equipment (UE) in a radio communication network that includes the positioning node and a radio network node controlling a first cell serving the UE, the method comprising:
- determining, in the positioning node, at least one cell for which a system frame number is known or can be obtained by the UE;
- generating a message comprising positioning assistance data that includes information associated with the at least one cell;
- and
- transmitting the message to the UE, whereby the positioning assistance data in the message enables positioning of the UE;
- wherein the positioning assistance data comprises Observed Time Difference of Arrival (OTDOA) assistance data, and the at least one cell is represented in the OTDOA assistance data either as a reference cell or in a neighbor cell list;
- wherein the positioning measurement is a Reference Signal Time Difference (RSTD) measurement that uses the OTDOA assistance data and the system frame number of the at least one cell to enable positioning of the user equipment;
- and
- wherein the RSTD measurement is a relative received timing difference between a neighbor cell and the reference cell.
A user equipment (UE) for enabling positioning of the UE in a radio communication network having a positioning node and a radio network node controlling a first cell serving the UE, in which the UE is configured to know or to obtain a system frame number of at least one cell, the UE comprising:
- a receiver configured to receive from the positioning node a message comprising positioning assistance data that includes information associated with the at least one cell for which the system frame number is known or can be obtained by the UE;
- and
- a performing circuit configured to perform a positioning measurement using the positioning assistance data and the system frame number of the at least one cell to enable positioning of the UE;
- wherein the positioning assistance data comprises Observed Time Difference of Arrival (OTDOA) assistance data, and the at least one cell is represented in the OTDOA assistance data either as a reference cell or in a neighbor cell list;
- wherein the positioning measurement is a Reference Signal Time Difference (RSTD) measurement that uses the OTDOA assistance data and the system frame number of the at least one cell to enable positioning of the user equipment;
- wherein the RSTD measurement is a relative received timing difference between a neighbor cell and the reference cell;
- and
- wherein the positioning node is not in a Radio Access Network (RAN) portion of the radio communication network.
A positioning node for enabling positioning of a user equipment (UE) in a radio communication network including the positioning node and a radio network node controlling a first cell serving the UE, the positioning node comprising:
- a determining circuit configured to determine at least one cell for which a system frame number is known or can be obtained by the UE;
- a generating circuit configured to generate a message comprising positioning assistance data that includes information associated with the at least one cell;
- and
- a transmitting circuit configured to transmit the message to the UE, whereby the positioning assistance data in the message enables positioning of the UE;
- wherein the positioning assistance data comprises Observed Time Difference of Arrival (OTDOA) assistance data, and the at least one cell is represented in the OTDOA assistance data either as a reference cell or in a neighbor cell list;
- wherein the positioning measurement is a Reference Signal Time Difference (RSTD) measurement that uses the OTDOA assistance data and the system frame number of the at least one cell to enable positioning of the user equipment;
- and
- wherein the RSTD measurement is a relative received timing difference between a neighbor cell and the reference cell.
Dependencies are inferred from the claim text.