# US 12,192,814 B2 · Method and apparatus for determining measured value of reference signal

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- Number: US 12,192,814 B2
- Document ID: US12192814B2
- Status: Granted
- Kind: B2
- Application number: 18/494,510
- Filed: 2023-10-25
- Published: 2024-04-25
- Granted: 2025-01-07
- Earliest claimed: 2018-10-22
- Assignees: Huawei Technologies Co., Ltd.
- Applicants: Huawei Technologies Co., Ltd.
- Inventors: Mao Yan; Huang Huang; Hua Shao; Lei Chen
- Web page: https://patentgrep.com/patent/US12192814B2

## CPC

- H04L 27/2613: {Structure of the reference signals}
- H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports}
- G01S 5/0036: {of measured values, i.e. measurement on mobile and position calculation on base station}
- H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)}
- H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal}
- H04L 27/26025: {Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking (allocating sub-channels of the transmission path H04L5/003)}
- H04L 27/2607: {Cyclic extensions}
- H04L 27/2662: {Symbol synchronisation}
- G01S 1/68: Marker, boundary, call-sign, or like beacons transmitting signals not carrying directional information
- G01S 5/10: Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements {, e.g. omega or decca systems}(G01S5/12 takes precedence {; beacons and receivers cooperating therewith G01S1/306, G01S1/308})
- G01S 2205/008: using a mobile telephone network
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- 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

This application relates to the field of communications technologies. A method includes: A first device receives first configuration information sent by a second device. The first configuration information includes at least one of information about a reference signal, frequency range information of a radio frequency signal, or bandwidth range information. The first device measures a first reference signal set, to obtain a first measured value. The first reference signal set includes at least two reference signals. The first device determines an expansion factor α based on the first configuration information. The first device determines a second measured value based on the first measured value and the expansion factor α.

## Claims

### Claim 1

A method, comprising:
measuring, by a second device, a first reference signal, to obtain a first measured value;
determining, by the second device, an expansion factor α; and
determining, by the second device, a reported value based on the first measured value, wherein the reported value indicates a quantized value range corresponding to the first measured value, and the quantized value range corresponding to the first measured value is related to the expansion factor α, wherein the quantized value range corresponding to the first measured value is determined based on a quantization unit and the first measured value, a value of the quantization unit depends on a value of the expansion factor α, and the value of the quantization unit is one of Tc, 2× Tc, 4×Tc, 8×Tc, 16×Tc, and 32×Tc, and wherein Tc=1/(480000×4096) seconds.

### Claim 2 (depends on 1)

The method according to claim 1, further comprising:
sending, by the second device, first configuration information to a first device, wherein the first configuration information comprises at least one of information about at least one reference signal, frequency range information of a radio frequency signal, or bandwidth range information.

### Claim 3 (depends on 2)

The method according to claim 2, wherein the information about the at least one reference signal comprises at least one of a subcarrier spacing of the at least one reference signal, a frequency domain density of the at least one reference signal, a time domain density of the at least one reference signal, time location information of the at least one reference signal, a frequency domain position offset of the at least one reference signal, a scrambling ID of the at least one reference signal, a frequency channel number of the at least one reference signal, waveform information of the at least one reference signal, bandwidth part (BWP) information of the at least one reference signal, or quasi co-location (QCL) information of the at least one reference signal.

### Claim 4 (depends on 1)

The method according to claim 1, wherein the expansion factor α is determined based on based on a carrier frequency range of the first reference signal.

### Claim 5 (depends on 1)

The method according to claim 1, further comprising:
sending, by the second device, the expansion factor α to a third device.

### Claim 6 (depends on 1)

The method according to claim 1, further comprising:
sending, by the second device, the reported value to a third device.

### Claim 7 (depends on 5)

The method according to claim 5, wherein the second device is a base station, and the third device is a location server.

### Claim 8

A second device, comprising:
at least one processor; and
a non-transitory computer readable storage medium storing a program executable by the at least one processor, the program including instructions to:
measure a first reference signal to obtain a first measured value;
determine an expansion factor α; and
determine a reported value based on the first measured value, wherein the reported value indicates a quantized value range corresponding to the first measured value, and the quantized value range corresponding to the first measured value is related to the expansion factor α, wherein the quantized value range corresponding to the first measured value is determined based on a quantization unit and the first measured value, a value of the quantization unit depends on a value of the expansion factor α, and the value of the quantization unit is one of Tc, 2×Tc, 4×Tc, 8×Tc, 16×Tc, and 32× Tc, and wherein Tc=1/(480000×4096) seconds.

### Claim 9 (depends on 8)

The second device according to claim 8, further comprising:
a transmitter, configured to send first configuration information to a first device, wherein the first configuration information comprises at least one of information about at least one reference signal, frequency range information of a radio frequency signal, or bandwidth range information.

### Claim 10 (depends on 9)

The second device according to claim 9, wherein the information about the at least one reference signal comprises at least one of a subcarrier spacing of the at least one reference signal, a frequency domain density of the at least one reference signal, a time domain density of the at least one reference signal, time location information of the at least one reference signal, a frequency domain position offset of the at least one reference signal, a scrambling ID of the at least one reference signal, a frequency channel number of the at least one reference signal, waveform information of the at least one reference signal, bandwidth part (BWP) information of the at least one reference signal, or quasi co-location (QCL) information of the at least one reference signal.

### Claim 11 (depends on 8)

The second device according to claim 8, wherein the expansion factor α is determined based on based on a carrier frequency range of the first reference signal.

### Claim 12 (depends on 8)

The second device according to claim 8, further comprising:
a transmitter, configured to:
send the expansion factor α to a third device.

### Claim 13 (depends on 8)

The second device according to claim 8, further comprising a transmitter configured to:
send the reported value to a third device.

### Claim 14 (depends on 13)

The second device according to claim 13, wherein the second device is a base station, and the third device is a location server.

### Claim 15

A system comprising:
a first device; and
a second device, configured to:
measure a first reference signal, to obtain a first measured value;
determine an expansion factor α; and
determine a reported value based on the first measured value, wherein the reported value indicates a quantized value range corresponding to the first measured value, and the quantized value range corresponding to the first measured value is related to the expansion factor α, wherein the quantized value range corresponding to the first measured value is determined based on a quantization unit and the first measured value, a value of the quantization unit depends on a value of the expansion factor α, and the value of the quantization unit is one of Tc, 2×Tc, 4×Tc, 8×Tc, 16×Tc, and 32×Tc, and wherein Tc=1/(480000×4096) seconds.

### Claim 16 (depends on 15)

The system according to claim 15, wherein the second device is further configured to:
send first configuration information to the first device, wherein the first configuration information comprises at least one of information about a at least one reference signal, frequency range information of a radio frequency signal, or bandwidth range information.

### Claim 17 (depends on 16)

The system according to claim 16, wherein the information about the at least one reference signal comprises at least one of a subcarrier spacing of the at least one reference signal, a frequency domain density of the at least one reference signal, a time domain density of the at least one reference signal, time location information of the at least one reference signal, a frequency domain position offset of the at least one reference signal, a scrambling ID of the at least one reference signal, a frequency channel number of the at least one reference signal, waveform information of the at least one reference signal, bandwidth part (BWP) information of the at least one reference signal, or quasi co-location (QCL) information of the at least one reference signal.

### Claim 18 (depends on 15)

The system according to claim 15, wherein the expansion factor α is determined based on based on a carrier frequency range of the first reference signal.

### Claim 19 (depends on 15)

The system according to claim 15, wherein the second device is further configured to:
send the expansion factor a to a third device.

### Claim 20 (depends on 15)

The system according to claim 15, wherein the second device is further configured to:
send the reported value to a third device.

### Claim 21 (depends on 20)

The system according to claim 20, wherein the second device is a base station, and the third device is a location server.
