Techniques for measuring a location of UE
First Claim
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1. A method for measuring an observed time difference of arrival (OTDOA), the method performed by a terminal and comprising:
- acquiring information on a first bandwidth allocated for PRSs (Position Reference Signals) of a serving cell;
acquiring information on a second bandwidth allocated for PRSs of a neighbor cell;
acquiring information on a third bandwidth allocated for PRSs of a reference cell; and
measuring a RSTD (Reference Signal Time Difference) using a RSTD measurement accuracy determined based on a minimum bandwidth between the first bandwidth of the serving cell, the second bandwidth of the neighbor cell, and the third bandwidth of the reference cell,wherein the RSTD is a relative timing difference between the neighbor cell and the reference cell.
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Abstract
The present invention provides a method for measuring a location. The method comprises: receiving, by a User Equipment (UE) and from a serving cell, information on a bandwidth allocated for a positioning reference signal (PRS); receiving, by the User Equipment (UE) and from at least one or more neighbor cells, information on a bandwidth allocated for a PRS; determining whether there is a difference between the bandwidths; and measuring, by the UE and based on a result of the determination a timing difference between PRSs transmitted from the serving cell and the at least one or more neighbor cells.
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Citations
13 Claims
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1. A method for measuring an observed time difference of arrival (OTDOA), the method performed by a terminal and comprising:
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acquiring information on a first bandwidth allocated for PRSs (Position Reference Signals) of a serving cell; acquiring information on a second bandwidth allocated for PRSs of a neighbor cell; acquiring information on a third bandwidth allocated for PRSs of a reference cell; and measuring a RSTD (Reference Signal Time Difference) using a RSTD measurement accuracy determined based on a minimum bandwidth between the first bandwidth of the serving cell, the second bandwidth of the neighbor cell, and the third bandwidth of the reference cell, wherein the RSTD is a relative timing difference between the neighbor cell and the reference cell. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A user equipment for measuring an observed time difference of arrival (OTDOA) based on a reference signal from a reference cell, the user equipment comprising:
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a transceiver unit configured to transceive signals; and a controller operatively connected to the transceiver and configured to; acquire information on a first bandwidth allocated for PRSs (Positioning Reference Signals) of a serving cell; acquire information on a second bandwidth allocated for PRSs of a neighbor cell; acquire information on a third bandwidth allocated for PRSs of a reference cell; and measure a RSTD (Reference Signal Time Difference) using a RSTD measurement accuracy determined based on a minimum bandwidth between the first bandwidth of the serving cell, the second bandwidth of the neighbor cell, and the third bandwidth of the reference cell, wherein the RSTD is a relative timing difference between the neighbor cell and the reference cell. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification