Positioning capabilities of reduced capability new radio devices
A reduced capability (redcap) user equipment (UE) is configured to receive a positioning reference signal (PRS) configuration from a network component and perform one or more positioning operations based at least in part on the PRS configuration. A base station is configured to receive, from a location management function (LMF) of a network, a positioning reference signal (PRS) configuration for a reduced capability user equipment (redcap UE) and transmit PRS to the redcap UE based on the PRS configuration.
1 . A processor of a reduced capability (redcap) user equipment (UE) configured to perform operations comprising:
receiving, from a network, a positioning reference signal (PRS) configuration comprising resources for PRS;
receiving a discontinuous reception (DRX) cycle configuration from the network, wherein the PRS are configured to align with an On Duration of the DRX cycle; and
performing one or more positioning operations based at least in part on the PRS configuration.
2 . The processor of claim 1 , wherein the PRS configuration indicates the redcap UE is to perform the positioning operations in a measurement gap and wherein a configured bandwidth of the PRS is greater than an indicated bandwidth capability of the redcap UE.
3 . The processor of claim 2 , wherein the positioning operations comprise the redcap UE omitting measurement of the PRS.
4 . The processor of claim 2 , wherein the positioning operations comprise measuring a portion of the PRS that are within the indicated bandwidth capability of the redcap UE.
5 . The processor of claim 1 , wherein the PRS configuration indicates the redcap UE is to perform the positioning operations within a current active bandwidth part (BWP) of the redcap UE and a configured bandwidth of the PRS is greater than the current active BWP of the redcap UE.
6 . The processor of claim 5 , wherein the positioning operations comprise omitting measurement of the PRS.
7 . The processor of claim 5 , wherein the positioning operations comprise measuring a portion of the PRS that are within the active BWP of the redcap UE.
8 . The processor of claim 1 , wherein the positioning operations comprise transmitting a measurement report for the PRS on a Physical Uplink Shared Channel (PUSCH), wherein the PUSCH selected for transmitting the measurement report is based on a time between a last symbol of the PRS reception and a first symbol of the PUSCH, wherein the time is based on a processing capability of the redcap UE.
9 . The processor of claim 8 , wherein the measurement report is not multiplexed with any uplink control information (UCI) on the PUSCH.
10 . The processor of claim 8 , wherein the measurement report is multiplexed with one or more of a high priority Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) or a high priority scheduling request (SR).
11 . The processor of claim 1 , wherein the PRS configuration indicates the redcap UE is to perform the positioning operations within a current active bandwidth part (BWP) of the redcap UE.
12 . The processor of claim 11 , wherein the redcap UE is configured to operate in a half-duplex frequency division duplexing (HD-FDD) mode, the positioning operations comprise omitting transmission of configured uplink (UL) transmissions and reception of configured downlink (DL) receptions within a PRS buffering window and a PRS processing window.
13 . The processor of claim 11 , wherein the redcap UE is configured to operate in a half-duplex frequency division duplexing (HD-FDD) mode, the positioning operations comprise omitting transmission of dynamically indicated UL transmissions and reception of dynamically indicated DL receptions within a PRS buffering window and a PRS processing window.
14 . The processor of claim 13 , wherein the positioning operations further comprise omitting measurement of the PRS.
15 . The processor of claim 11 , wherein the redcap UE is further configured to transmit a Physical Random Access Channel (PRACH) transmission that collides with reception of the PRS, the positioning operations comprise omitting reception of the PRS.
16 . The processor of claim 11 , wherein the redcap UE is further configured to transmit a Physical Random Access Channel (PRACH) transmission that collides with reception of the PRS, the positioning operations comprise dropping the PRACH transmission.
17 . A processor of a base station configured to perform operations comprising:
receiving, from a location management function (LMF) of a network, a positioning reference signal (PRS) configuration comprising resources for PRS for a reduced capability user equipment (redcap UE);
configuring a discontinuous reception (DRX) cycle for the redcap UE, wherein the DRX cycle is based on the PRS configuration received from the LMF and wherein the PRS are configured to align with an On Duration of the DRX cycle; and
transmitting PRS to the redcap UE based on the PRS configuration.
18 . A location management function of a network configured to perform operations comprising:
determining a positioning reference signal (PRS) configuration for a reduced capability user equipment (redcap UE) communicating with the network;
transmitting the PRS configuration to the redcap UE;
receiving, from a base station serving the redcap UE, a discontinuous reception (DRX) cycle configuration for the redcap UE; and
transmitting the DRX cycle configuration of the redcap UE to one or more neighboring base stations to the serving base station, wherein the one or more neighboring base stations align a PRS configuration for the redcap UE based on the DRX cycle configuration.