# US 12,598,576 B2 · Methods for positioning in low-power reduced capability user equipment

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- Number: US 12,598,576 B2
- Document ID: US12598576B2
- Status: Granted
- Kind: B2
- Application number: 18/184,611
- Filed: 2023-03-15
- Published: 2023-10-19
- Granted: 2026-04-07
- Earliest claimed: 2022-04-14
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Yuhan Zhou; Philippe Sartori; Liang Hu
- Web page: https://patentgrep.com/patent/US12598576B2

## CPC

- H04B 7/0632: {Channel quality parameters, e.g. channel quality indicator [CQI]}
- H04W 64/00: Locating users or terminals {or network equipment} for network management purposes, e.g. mobility management
- G01S 5/0009: {Transmission of position information to remote stations (involving assistance data G01S5/0236)}
- G01S 5/0036: {of measured values, i.e. measurement on mobile and position calculation on base station}
- G01S 5/0205: {Details}
- H04B 7/0641: {Differential feedback}
- G01S 5/02524: {Creating or updating the radio-map}
- G01S 2205/008: using a mobile telephone network
- H04B: TRANSMISSION
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES

## Abstract

A system and a method for positioning by a user equipment (UE) may include receiving, by the UE, a radio resource control (RRC) signal comprising a measurement request, receiving, by the UE, at least two positioning reference signals (PRSs), each of the at least two PRSs corresponding to different fractions of an operating frequency range, determining that the at least PRSs are coherently combinable, aggregating, by the UE, the at least two PRSs in one measurement gap, and reporting, by the UE, measurements based on the aggregating the at least two PRSs.

## Claims

### Claim 1

A positioning method comprising:
receiving, by a user equipment (UE), a radio resource control (RRC) signal comprising a measurement request;
receiving, by the UE, at least two positioning reference signals (PRSs), each of the at least two PRSs corresponding to different fractions of an operating frequency range;
determining that the at least two PRSs are coherently combinable based on one or more channel parameters;
aggregating, by the UE, the at least two PRSs in one measurement gap; and
reporting, by the UE, measurements based on the aggregating the at least two PRSs.

### Claim 2 (depends on 1)

The method of claim 1, wherein the one or more channel parameters comprises channel coherence time.

### Claim 3 (depends on 1)

The method of claim 1, wherein the one or more channel parameters comprises clock drift and timing spacing between the different fractions of the operating frequency range.

### Claim 4 (depends on 1)

The method of claim 1, wherein the measurements based on the aggregation are reported to a Location Management Function (LMF).

### Claim 5 (depends on 1)

The method of claim 1, wherein each of the at least two PRSs is a narrowband PRS.

### Claim 6 (depends on 1)

The method of claim 1, wherein the UE is a reduced capability (RedCap) UE or a low power high accuracy positioning (LPHAP) UE.

### Claim 7 (depends on 1)

The method of claim 1, wherein the at least two PRSs are configured by the LMF.

### Claim 8 (depends on 1)

The method of claim 1, further comprising measuring, by a transmission reception point (TRP), an uplink sounding reference signal-reference signal received power (UL SRS-RSRP), an uplink sounding reference signal-reference signal path power (UL SRS-RSRPP), and uplink relative time of arrive (UL RTOA), and reporting the UL SRS-RSRP, the UL SRS-RSRPP, and the UL RTOA to the LMF.

### Claim 9 (depends on 8)

The method of claim 8, further comprising reporting, by the TRP, a differential report comprising differences between previously measured UL SRS-RSRP, UL SRS-RSRPP, and UL RTOA, and subsequently measured UL SRS-RSRP, UL SRS-RSRPP, and UL RTOA.

### Claim 10 (depends on 8)

The method of claim 8, further comprising reporting, by the UE, a downlink positioning reference signal-reference signal received power (DL PRS-RSRP) and a downlink positioning reference signal-reference signal path power (DL PRS-RSRPP) to the LMF.

### Claim 11 (depends on 1)

The method of claim 1, wherein the reporting of the measurements is performed using configured grant (CG).