# US 12,192,864 B2 · Adaptive sensor activation and configuration for positioning

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- Number: US 12,192,864 B2
- Document ID: US12192864B2
- Status: Granted
- Kind: B2
- Application number: 18/353,321
- Filed: 2023-07-17
- Published: 2023-11-09
- Granted: 2025-01-07
- Earliest claimed: 2021-04-01
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Marwen Zorgui; Srinivas Yerramalli; Rajat Prakash
- Web page: https://patentgrep.com/patent/US12192864B2

## CPC

- G01S 5/0244: {Accuracy or reliability of position solution or of measurements contributing thereto}
- H04W 4/38: for collecting sensor information
- G01S 5/0036: {of measured values, i.e. measurement on mobile and position calculation on base station}
- 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
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

Aspects of sensor activation or deactivation for positioning a mobile device in a wireless communication network are disclosed. These aspects include, during a positioning session between the mobile device and a location server, determining with the location server that a first trigger condition or a second trigger condition has been met regarding reporting, by the mobile device to the location server, of sensor data from one or more sensors of the mobile device, where: the first trigger condition may comprise a trigger condition for activating the reporting, and the second trigger condition may comprise a trigger condition for deactivating the reporting. Aspects further include sending, from the location server to the mobile device, a message may comprise either: instructions to activate the reporting responsive to determining the first trigger condition has been met, or instructions to deactivate the reporting responsive to determining the second trigger condition has been met.

## Claims

### Claim 1

A method of sensor activation for positioning a mobile device in a wireless communication network, the method comprising:
during a Long Term Evolution (LTE) Positioning Protocol (LPP) positioning session between the mobile device and a location server:
receiving in a first LPP message, location information at the location server from the mobile device for which sensor data reporting is inactive, wherein the location information includes measured position information and does not include sensor data from one or more sensors of the mobile device;
determining with the location server that a trigger condition has been met for activating the sensor data reporting;
responsive to determining the trigger condition has been met, sending, from the location server to the mobile device, an activation message comprising instructions to activate the sensor data reporting; and
subsequent to activating the sensor data reporting, receiving combined location information at the location server in a second LPP message from the mobile device, wherein the combined location information includes sensor data from the one or more sensors of the mobile device.

### Claim 2 (depends on 1)

The method of claim 1, wherein determining that the trigger condition has been met is based at least in part on:
a position uncertainty of the mobile device exceeding a position uncertainty threshold,
a wireless signal quality metric being lower than a signal quality threshold,
a periodicity of non-sensor-based location determinations for the mobile device being lower than a threshold periodicity, or
a combination thereof.

### Claim 3 (depends on 2)

The method of claim 2, further comprising obtaining a position determination of the mobile device indicative of the position uncertainty of the mobile device.

### Claim 4 (depends on 1)

The method of claim 1, further comprising:
receiving, at the location server, an indication of an accuracy of the sensor data of the one or more sensors of the mobile device; and
determining, with the location server, an accuracy of the sensor data based at least in part on the indication of an accuracy of sensor data;
wherein determining the trigger condition has been met is based at least in part on the determining the accuracy of the sensor data exceeds a threshold.

### Claim 5 (depends on 1)

The method of claim 1, wherein the activation message is sent via:
Radio Resource Control (RRC),
Media Access Control-Control Element (MAC-CE),
Downlink Control Information (DCI), or
a combination thereof.

### Claim 6 (depends on 1)

The method of claim 1, wherein the activation message identifies the one or more sensors of the mobile device to activate responsive to determining the trigger condition has been met.

### Claim 7

A method of sensor activation for positioning a mobile device in a wireless communication network, the method comprising:
during a Long Term Evolution (LTE) Positioning Protocol (LPP) positioning session between the mobile device and a location server:
sending, in a first LPP message from the mobile device for which sensor data reporting is inactive, location information to the location server, wherein the location information includes measured position information and does not include sensor data from one or more sensors of the mobile device;
determining, with the mobile device, that a trigger condition has been met for activating the sensor data reporting; and
responsive to determining the trigger condition has been met, sending combined location information in a second LPP message from the mobile device to the location server, wherein the combined location information includes sensor data from the one or more sensors of the mobile device.

### Claim 8 (depends on 7)

The method of claim 7, further comprising, prior to sending the second LPP message:
sending a request message from the mobile device to the location server, wherein the request message comprises a request to activate the reporting responsive to determining the trigger condition has been met; and
receiving, at the mobile device, an acknowledgement from the location server;
wherein, sending the second LPP message is at least partly based on receiving the acknowledgement.

### Claim 9 (depends on 8)

The method of claim 8, wherein the request message is sent via:
Physical Uplink Shared Channel (PUSCH),
Physical Uplink Control Channel (PUCCH),
Uplink Control Information (UCI), or
a combination thereof.

### Claim 10 (depends on 8)

The method of claim 8, wherein the request to activate the reporting identifies the one or more sensors of the mobile device to activate.

### Claim 11 (depends on 7)

The method of claim 7, wherein determining the trigger condition has been met is based at least in part on:
a battery power level of the mobile device,
a wireless signal quality metric being lower than a signal quality threshold,
a sensor accuracy metric of the one or more sensors of the mobile device being below a sensor accuracy threshold, or
a combination thereof.

### Claim 12 (depends on 11)

The method of claim 11, wherein the signal quality threshold, the sensor accuracy threshold, or both, are received by the mobile device in a configuration message from the location server.

### Claim 13 (depends on 12)

The method of claim 12, wherein the configuration message is received via:
Radio Resource Control (RRC),
Media Access Control-Control Element (MAC-CE),
Downlink Control Information (DCI), or
a combination thereof.

### Claim 14

A location server enabling sensor activation for positioning a mobile device in a wireless communication network, the location server comprising:
at least one transceiver;
a memory; and
one or more processing units communicatively coupled with the at least one transceiver and the memory, the one or more processing units configured to:
during a Long Term Evolution (LTE) Positioning Protocol (LPP) positioning session between the mobile device and a location server:
receive, in a first LPP message received via the at least one transceiver, location information from the mobile device for which sensor data reporting is inactive, wherein the location information includes measured position information and does not include sensor data from one or more sensors of the mobile device;
determine that a trigger condition has been met regarding for activating the reporting;
responsive to determining the trigger condition has been met, send, via the at least one transceiver to the mobile device, an activation message comprising instructions to activate the sensor data reporting; and
subsequent to activating the sensor data reporting, receive combined location information at the location server in a second LPP message from the mobile device, wherein the combined location information includes sensor data from the one or more sensors of the mobile device.

### Claim 15 (depends on 14)

The location server of claim 14, wherein the one or more processing units are configured to determine that the trigger condition has been met based at least in part on:
a position uncertainty of the mobile device exceeding a position uncertainty threshold,
a wireless signal quality metric being lower than a signal quality threshold,
a periodicity of non-sensor-based location determinations for the mobile device being lower than a threshold periodicity, or
a combination thereof.

### Claim 16 (depends on 15)

The location server of claim 15, wherein the one or more processing units are further configured to obtain a position determination of the mobile device indicative of the position uncertainty of the mobile device.

### Claim 17 (depends on 14)

The location server of claim 14, wherein the one or more processing units are further configured to:
receive an indication of an accuracy of the sensor data of the one or more sensors of the mobile device;
determine an accuracy of the sensor data based at least in part on the indication of an accuracy of sensor data; and
make the determination that the trigger condition has been met based at least in part on the determining the accuracy of the sensor data exceeds a threshold.

### Claim 18 (depends on 14)

The location server of claim 14, wherein the one or more processing units further configured to send the activation message via:
Radio Resource Control (RRC),
Media Access Control-Control Element (MAC-CE),
Downlink Control Information (DCI), or
a combination thereof.

### Claim 19 (depends on 14)

The location server of claim 14, wherein the one or more processing units further configured to send the activation message such that the activation message identifies the one or more sensors of the mobile device to activate responsive to determining the trigger condition has been met.

### Claim 20

A mobile device enabling sensor activation for positioning a mobile device in a wireless communication network, the mobile device comprising:
at least one transceiver;
a memory; and
one or more processing units communicatively coupled with the at least one transceiver and the memory, the one or more processing units configured to:
during a Long Term Evolution (LTE) Positioning Protocol (LPP) positioning session between the mobile device and a location server:
send, in a first LPP message via the at least one transceiver while sensor data reporting is inactive for the mobile device, location information to the location server, wherein the location information includes measured position information and does not include sensor data from one or more sensors of the mobile device;
determine that a trigger condition has been met for activating the sensor data reporting; and
responsive to determining the trigger condition has been met, send combined location information in a second LPP message via the at least one transceiver to the location server, wherein the combined location information includes sensor data from the one or more sensors of the mobile device.

### Claim 21 (depends on 20)

The mobile device of claim 20, wherein the one or more processing units are configured to, prior to sending the second LPP message:
send a request message via the at least one transceiver to the location server, wherein the request message comprises a request to activate the reporting responsive to determining the trigger condition has been met; and
receive, via the at least one transceiver, an acknowledgement from the location server;
wherein, the one or more processing units are configured to send the second LPP message at least partly based on receiving the acknowledgement.

### Claim 22 (depends on 21)

The mobile device of claim 21, wherein the one or more processing units are configured to send the request message via:
Physical Uplink Shared Channel (PUSCH),
Physical Uplink Control Channel (PUCCH),
Uplink Control Information (UCI), or
a combination thereof.

### Claim 23 (depends on 21)

The mobile device of claim 21, wherein the one or more processing units are configured to identify, in the request message to activate the reporting, the one or more sensors of the mobile device to activate.

### Claim 24 (depends on 20)

The mobile device of claim 20, wherein the one or more processing units are configured to determine the trigger condition has been met based at least in part on:
a battery power level of the mobile device,
a wireless signal quality metric being lower than a signal quality threshold,
a sensor accuracy metric of the one or more sensors of the mobile device being below a sensor accuracy threshold, or
a combination thereof.

### Claim 25 (depends on 24)

The mobile device of claim 24, wherein the one or more processing units are configured to receive the signal quality threshold, the sensor accuracy threshold, or both, via the at least one transceiver in a configuration message from the location server.

### Claim 26 (depends on 25)

The mobile device of claim 25, wherein the one or more processing units are configured to receive the configuration message via:
Radio Resource Control (RRC),
Media Access Control-Control Element (MAC-CE),
Downlink Control Information (DCI), or
a combination thereof.
