Methods and apparatus for frequency layer configuration for NR positioning reference signals
AssigneeSamsung Electronics Co., Ltd.
InventorYinan Qi
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Abstract
A method for configuring frequency layers is disclosed. Each frequency layer comprises one or more frequency layer parts, wherein each frequency layer part comprises a contiguous set of frequencies defined by a bandwidth and a centre frequency. Positioning Reference Signal (PRS) is mapped to each frequency layer. The method comprises: configuring a first frequency layer for a first cell, wherein the first frequency layer comprises at least one frequency layer part, FL1, having a bandwidth BW1 and a centre frequency CF1; and configuring a second frequency layer for a second cell, wherein the second frequency layer comprises at least one frequency layer part, FL2, having a bandwidth BW2 and a centre frequency CF2.
Claims6
A method of a user equipment (UE) in a wireless communication system, the method comprising:
- receiving, from a network entity, configuration information for multiple frequency layers, wherein each frequency layer of the multiple frequency layers corresponds to contiguous frequencies allocated to one or more cells associated with the each frequency layer and includes resources to which a positioning reference signal (PRS) is mapped;
- and
- receiving, from one or more cells, the PRS based on the configuration information,
- wherein the each frequency layer is configured to support a single numerology and a single PRS density, the single numerology being associated with a value of a subcarrier spacing (SCS) configuration,
- wherein a start physical resource block (PRB) for the each frequency layer is defined relative to point A, and the point A for PRS resource allocation is provided per frequency layer, and up to 4 frequency layers are configurable for the UE,
- wherein K frequency layers among the multiple frequency layers are activated for the UE based on whether a measurement gap is configured or not,
- based on the measurement gap not being configured, the UE is capable of measuring for a frequency layer within an active bandwidth part (BWP), and
- based on the measurement gap being configured, the UE is capable of measuring outside the active BWP and measuring frequency layers at one time depending on UE capability.
A user equipment (UE) in a wireless communication system, the UE comprising:
- a transceiver;
- and
- a controller coupled with the transceiver and configured to:
- receive, from a network entity, configuration information for multiple frequency layers, wherein each frequency layer of the multiple frequency layers corresponds to contiguous frequencies allocated to one or more cells associated with the each frequency layer and includes resources to which a positioning reference signal (PRS) is mapped;
- and
- receive, from one or more cells, the PRS based on the configuration information,
- wherein the each frequency layer is configured to support a single numerology and a single PRS density, the single numerology being associated with a value of a subcarrier spacing (SCS) configuration,
- wherein start physical resource block (PRB) for the each frequency layer is defined relative to point A, and the point A for PRS resource allocation is provided per frequency layer, and up to 4 frequency layers are configurable for the UE,
- wherein K frequency layers among the multiple frequency layers are activated for the UE based on whether a measurement gap is configured or not,
- based on the measurement gap not being configured, the UE is capable of measuring for a frequency layer within an active bandwidth part (BWP), and
- based on the measurement gap being configured, the UE is capable of measuring outside the active BWP and measuring frequency layers at one time depending on UE capability.
Dependencies are inferred from the claim text.